Question

8x^2-7x+2, when x=2 .pls answer this question fast​

Answer 1

Answer:

Given,

2x²- 7x + 2

2 ×(2)² - 7 ×2 + 2

2 ×4 - 14 +2

8-14 +2

8- 16

-8

Answer 2

$= 8 {x}^{2} - 7x + 2 \\ when \: \: \: x = 2 \\ = 8 \times {2}^{2} - 7 \times 2 + 2 \\ = 8 \times 4 - 14 + 2 \\ = 32 - 12 \\ = 20$