Question

Find the value of 3x²-4x+8 when x=8​

Answer 1

Answer:

STEP

1

:

Equation at the end of step 1

((0 - 3x2) + 4x) - 8 = 0

STEP

2

:

STEP

3

:

Pulling out like terms

3.1 Pull out like factors :

-3x2 + 4x - 8 = -1 • (3x2 - 4x + 8)

Answer 2

Answer :-

3x² -4x + 8

= 3x² -4(8) + 8

= 3x² -32 + 8

= 3x² -24

Hence, 3x² -24 is the answer.