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\/{(17+15)(17-15)}
= \/(32×2)
\/64
= 8 ❤

ernestobie-wmei

The answer is 8 (Choice C).

Treat the radicand as a difference of two squares and take the principal square root of the result, thus;

17^2 - 15^2 = (17 + 15)(17 - 15) =>

(17 + 15)(17 -15) = (32)(2) =>

(32)(2) = 64

The principal square root of 64 is 8.

The answer is 8.

sylvesterogbolu-otutu

√17² -15² =
√289 - 225 =
√64 = 8
Resposta: C) 8 ✔️

antonioluiscastro

(17 + 15) (17 - 15). 32 x 2 = 64. sqrt(64) = 8

negativeM

Sqrt(17^2-15^2)
Sqrt((17-15)(17+15))
Sqrt(2×32)
Sqrt(64)
8

Thus the answer is c

ddouglas

sqrt((17^2-15^2)) (Given)

We can factor the 17^2-15^2 as a difference of squares.

=sqrt((17+15)*(17-15))

We know that 17+15=32, and that 17-15=2.

=sqrt(32*2)

Then we know that 32*2=64.

=sqrt(64)

Finally, sqrt(64)=8.

=8

Hence, the correct answer is choice C.. GG.

herbcruz

√17²-15²=√(17-15)(17+15)
=√2.32
=√64
=8

ennijumayani

√17²-15²
17²-2²=15²
√15²-15²=0
2²=4

4 Ans

dian-zan-he-ding-yue