Question

Need answers don’t know how to solve

Answer 1

Explanation:

a) 7x^2(8x-1) = 56x^3 - 7x^2;

b) 4(x^2 + 8) = 4x^2 + 36;

c) 9(2x^2 + 3x - 1) = 18x^2 + 27x - 9;

d) 2x(3x^3 - 2x + 7) = 6x^4 - 4x^2 + 14x;

So, the answer is:

1 = a)

2 = b)

3 = d)

4 = c)

Answer 2

1.i) a

ii) b

iii) d

iv)

Explanation: