Question

3. (a) Expand and simplify the following expression.
X(5x-2)-3(x^2-2x+7)

Answer 1

5xX - 3x^2 - 2X + 6x - 21

Explanation:

x(5x-2)-3(x^2-2x+7) =

5x^2-2x-3(x^2-2x+7)

=

5x^2-2x-3x^2+6x-21

=(combine the like terms)

2x^2-2x+6x-21

=

2x^2+4x-21

Answer 2

This will be the answer