Question 2 (i)

Ifp = -2,find the value of:
4p + 7

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Solution

4p + 7 = 4(-2) + 7 [Putting p = -2]
= -8 + 7 = -1

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Question 2 (ii)

If p = -2, find the value of:
$- 3 p^{2} + 4 p + 7$

p = - 2,

4 p + 7

p = - 2

- 3 p^{2} + 4 p + 7

If p = −2, find the value of:

(i) 4p + 7

(ii) −3p² + 4p + 7

(iii) −2p³ − 3p² + 4p + 7

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