Question

Simplify the expression 3(2x – 4) + x² + 5 and then find the value for x = 2.
only ans if u know

Answer 1

Step-by-step explanation:

3(2x-4) +x²+5 = 6x - 12 + x² + 5

                      = x² + 6x - 7

for x = 2   ⇒  2² + 6(2) - 7

                   4 + 12 - 7

                      = 9