Question

if m=3andn=2then find the value of 3m²=5n²+2mn

Answer 1

m = 3. and n = 2

$3m {}^{2} = 5n {}^{2} + 2mn$

Putting values of m and n

$3(3) {}^{2} = 5(2) {}^{2} + 2(3)(2)$

$3 \times 9 = 5 \times 4 + 12$

$27 = 20 + 12$

$27 = 32$

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