Question

X=-2, find the value of 7x²+3x-8​

Answer 1

7x² + 3x - 8

At x = - 2

7 ( - 2 ) ² + 3 x - 2 - 8

7 x 4 + 3 x - 2 - 8

28 - 6 - 8

28 - 14

Answer ➡ 14

Answer 2

Answer:

7x²+3x-8

At x= -2

7(-2)²+3x-2-8

7x4+3x-2-8

28-6-8

28-14

= 14

Step-by-step explanation:

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