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Finding the Value of an Expression

ii If p = -2,...

Question

Question 2 (ii)

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

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Solution

$- 3 p^{2} + 4 p + 7 = - 3 (- 2)^{2} + 4 (- 2) + 7$ [Putting p = -2]
$= - 3 \times 4 - 8 + 7 = - 12 - 8 + 7$
= - 20 + 7 = -13

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Similar questions

If p = −2, find the value of:

(i) 4p + 7

(ii) −3p² + 4p + 7

(iii) −2p³ − 3p² + 4p + 7

p = - 2

find the value of

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

Question 2 (i)

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

p = - 2,

find the value of:

4 p + 7

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Finding the Value of an Expression

Standard VII Mathematics

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