Answer:
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)
1.i) a
ii) b
iii) d
iv)
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