Question

5 (x² − 2) + 2x − 3x (x − 7)?

I just need help with the working it out step.

Answer 1

`2x^2+23x-10`

Explanation:

1) distribute the parenthesis by multiplying 5 into (x^2 - 2) and -3x into (x - 7)

`5x^2-10 +2x-3x^2+21x\\`

2) simplify by adding and subtracting like terms

`2x^2+23x-10`