Question

7.

Solve (x-4)2 + 3x = (2x + 5)(x-7) – 13.
=
Give the exact answers in simplified surd form.

Answer 1

-3.5

Explanation:

2x-8+3x=5x-8

5x-8=(2x+5)(x-7)-13

5x-8=2x+5+x-7-13

5x-8=3x-15

5x=3x-7

2x/2=-7/2

x=-3.5

Answer 2

x = 20

Sorry if I’m wrong!! But I think it’s right