x^2 + y^2 = 74 and xy = 35 find x + y and x - y, 2x + 3y = 14 and xy = 8 find 4x^2 + 9y^2

Показать описание

In this video, we have a set of 4 problems, which are based on the quadratic formulae.
x + y = 13 and xy = 22, find value of x^2 + y^2
x - y = 5 and xy = 36, find the value of x^2 + y^2
x^2 + y^2 = 74 and xy = 35, find the value of x + y and x - y.
2x + 3y = 14 and xy = 8, find the value of 4x^2 + 9y^2

Рекомендации по теме

Комментарии

Thank you this was really helpful and I have subscribed to your channel

MJFinn

Why did it became - 1:54 if (- | +) = -?
Again, 7:42 196= 4x²+9y² +96 be 4x²+9y²= 196-96, Why?
3:05 if +25= x²+y² -72, will be x²+y²= -25-72 ? wouldn't it that be?
do we have to use signal rules here, right? ( - | - ) = +? ( + | - ) = -

claytinrei

Your maths teaching is very my helpful...

anishakc

Mam why are you writing answer as plus minus is it not confirmed that the no is positive or

mohitbawaskar

Can those 2 formula can be used to solve any problem

steffydomnic

sqrt(144) = 12, (x+y)^2 = 144 gives x+y = + - sqrt(144) = + - 12 . Really nice presentation platform!

MyOneFiftiethOfADollar

Very useful for beginners like me thank you mam

rameshperiyasamy

Old tricks..now we are going very advanced mam

sribaby

Thank you so mam, it really helped me a lot and your voice is also very sweet and satisfying💖

bxbblymandu

This helped me soo much with my math homework

potatoknobby

Mam i am your best student give me .tips to be good at maths

cadetNarayan

x is 5 y is 7 or x is 7 and y is 5 , or x=-5 and y=-7 so x-y=2 and x+y=12 or -12 for the problem x^2 + y^2=74 and xy=35

devondevon

I am an math expert. And you don't know math like me. If you challenge me I should except.

mithusen

IT WAS REALLY HELPFUL FOR ME,
THANK YOU

amitmandal

If we place +25 to the right of the equation...then it will be -25...then why u write it as 25😕😕

ifraansari

My answer of 4th problem is coming plus minus 148 please tell me if I'm wrong😢

calligraphy_you

x square+ y square + z square = 2013 ; ....How to solve this?

dr.m.rahamathunisha

x^2 + y^2 = 74 and xy = 35 find x + y and x - y, 2x + 3y = 14 and xy = 8 find 4x^2 + 9y^2

x^2 + y^2 = 74 and xy = 35 find x + y and x - y, 2x + 3y = 14 and xy = 8 find 4x^2 + 9y^2

Given x^2 + y^2 = 74 and xy = 35 , Find the sum x+y and the difference x-y

Jeśli x^2+y^2=74 i xy=35, to wartością wyrażenia (x+y)^2 jest liczba […].

3+6 divided by 2 = 6??

73. exp(x+2y) = 1 ; 74. y^2 = 2exp(-1/x);75. ln (x/y) = 1

HALLAR EL VALOR DE LA EXPRESIÓN ALGEBRAICA. ¿Si xy=35 y x²+y²=74, cuánto vale x+y?

how to find the value of x^2 +y^2=?and xy=?,when x+y=8,x-y=3

Circle Diameter from equation: x² + y² = r² GCSE question

#chapter73 & 74 Career mode, with III./JG52 il-2 Sturmovik battle of stalingrad gameplay

Persamaan garis singgung lingkaran x^2+y^2=74 di titik yang berabsis -5 adalah ...

A Wonderful Math Olympiad Question. Nice Algebra Problem. x^2 -y^2=24, xy=35 ,x+y=?

South Africa Math Olympiad Question

yadi (x-y) /2=2 or (x+y) /2=5 then find the value of x^2-y^2.#shortvideo #viralshorts #youtubeshorts

let x+y=4 and x-y=2 find xy ? in 5 seconds . math trick #lovemath #maths #matemáticas #mathmath

Math Olympiad Question | Find x+y= ? When x^2 - y^2 = 27 & xy=18 | Learn How to Solve Quickly

How to factor x2+y2

if x^2-y^2=24 xy=35, then x+y=? | China Math Olympiad Question | Can You Solve?

Solving an equation for y and x using two steps

The equation \( 16 x^{2}+y^{2}+8 x y-74 x-78 y+212=0 \) represents (A) a circle (B) a parabola (...

Method of Elimination Steps to Solve Simultaneous Equations

SISTEMA DE EQUAÇÕES (Substituição e Adição) - Prof. Robson Liers - Mathematicamente

|#x^2-y^2=24| |#xy=35| |#findx+y| |#olympiad| |#simpletricks| |#shorts| |#youtubeshorts|

Zad3/74 Okrąg (x-2)2+(y-2)2=29 jest opisany na trójkącie ABC. Oblicz pole tego trójkąta, jeśli jest...

This trick can make your rubik's cube 2x faster😱🔥#ytshorts#shorts#drcuber