Question

x=-2 then find the 4x square-2x +8​

Answer 1

Answer:

$x = 2(given)$

${4x}^{2} - 2x + 8$

$4 \times {2}^{2} - 2 \times 2 + 8$

$4 \times 4 - 2 \times 2 + 8$

$16 - 4 + 8$

$24 - 4$

$20 \: \: \: answer$

Step-by-step explanation:

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Answer 2

Answer:

if x = - 2

4x^2-2x+8 = 4 (-2)^2 - 2 (-2) + 8

= 4 ×4 + 4 +8

= 16 + 12

= 28