Question

1) Multiply -7x^3*3x^2*2y 2) Find the product of 3a (a^2+b^2) 3) Find the product of (5a-2b)(3a+7b) 4) Find the product of (7x+2y)(2x+7y) 5) Find the product of (5x^2-6x+9)(2x-3)

Answer 1

Answer:

(1). - 7x^3*3x^2*2y

Step-by-step explanation:

(-7*3*2)* x^(3+2)*y

-42yx^5

(2). 3a(a^2+b^2)

3a(a^2)+3a(b^2)

3a^(1+2)+3ab^2

3a^3+3ab^2

(3). (5a-2b)(3a+7b)

(5a-2b)(3a)+(5a-2b)(7b)

15a^2-6ab+35ab-14b^2

15a^2+29ab-14b^2