Question

If m=3 and n=2 find the value of (1) 9m2 - 10n3 (2) 2m2n2 (3) 2m3 + 3n2 - 5m2n .?
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Answer 1

Given:-

•Value of m = 3 and n=2.

To Find:-

$\: \sf(1)9 {m}^{2} - 10 {n}^{3} \\ \\ \sf (2)2 {m}^{2} {n}^{2} \\ \\ \sf (3)5 {m}^{2} n$

Solution:-

we have,

• m = 3
• n = 2

$\: \: \sf(1)9 {m}^{2} - 10 {n}^{3} \\ \\ \: \: \sf \: = 9 \times {3}^{2} - 10 \times {2}^{3} \\ \\ \: \: \sf \: = 9 \times9 - 10 \times 8 \\ \\ \: \: \sf \: = 81 - 80 = 1$

$\: \: \sf \: (2)2 {m}^{2} {n}^{2} \\ \\ \: \: \sf \: = 2 \times {3}^{2} \times {2}^{2} \\ \\ \: \: \sf \: = 2 \times 9 \times 4 \\ \\ \: \: \sf \: = 72$

$\: \: \sf \: (3)5 {m}^{2} n \\ \\ \: \: \sf \: = 5 \times {3}^{2} \times 2 \\ \\ \: \: \sf \: = 5 \times 9 \times 4 \\ \\ \: \: \sf = 180$

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Answer 2

Step-by-step explanation:

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