Question

P(x)=2x + 7x +3 at x = -2​

Answer 1

Step-by-step explanation:

P ( -2)= 2×-2 +7 × -2 +3

P (-2)= -4-14+3

= -18 +3

= -15

Answer 2

$2x + 7x + 3 \\ = 9x + 3 \\ x = - 2 \\ = 9 \times - 2 + 3 \\ = - 18 + 3 \\ = 15$

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