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Work out the value of the expressiona) 2(m 2+3) when m=−4      ________________________    (1)b) 5(n 3 +10) when  n=-2

Question

Work out the value of the expressiona) 2(m 2+3) when m=−4      ________________________    (1)b) 5(n 3 +10) when  n=-2

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Solution

a) First, substitute m = -4 into the expression 2(m^2 + 3).

This gives us 2((-4)^2 + 3) = 2(16 + 3) = 2(19) = 38.

b) Next, substitute n = -2 into the expression 5(n^3 + 10).

This gives us 5((-2)^3 + 10) = 5(-8 + 10) = 5(2) = 10.

Similar Questions

(m − n)2 − (m − 3n)2

Given 4m−5n=3n, express m in terms of n.

3(m + 4) - 2(2m + 3) = - 4

Evaluate –k2 – (3k – 5n) + 4n; k = −1 and n = −2.

4m 2 −m−3=−m 2

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