MULTIPLICATION OF POLYNOMIALS | GRADE 7

Learn how to multiply polynomials.
You can apply the laws of exponents in multiplying or dividing polynomials.
Examples:
1. Multiply 3xy and 4xz.
Solution : 3xy(4xz) = 3(4)(x)(x)(y)(z) = 12x2yz , multiply the numerical coefficients, add only the exponents of the same variable and copy the rest of the variables
2. Find the product of 3abc and (4a2 + 3a - 5).
Solution: Use Distributive Property
3abc(4a2 + 3a - 5) = 3abc(4a2 ) +3abc(3a) + 3abc(-5)
= 12a3bc + 9a2bc - 15abc

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