Simplify: $2 p^{3} - 3 p^{2} + 4 p - 5 - 6 p^{3} + 2 p^{2} - 8 p - 2 + 6 p + 8$

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Solution

Given, $2 p^{3} - 3 p^{2} + 4 p - 5 - 6 p^{3} + 2 p^{2} - 8 p - 2 + 6 p + 8$

$= 2 p^{3} - 6 p^{3} - 3 p^{2} + 2 p^{2} + 4 p - 8 p + 6 p + 8 - 5 - 2$ (combining like terms)

$= - 4 p^{3} - p^{2} + 2 p + 1$

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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

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

Question 2 (iii)

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

(12 p^{4} - 8 p^{2} + 4 p) \div 4 p^{2}

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