Q. 103.7( 7 Votes )

# Factorize:

49a^{2} + 84ab + 36b^{2}

Answer :

Given,

49a^{2} + 84ab + 36b^{2}

By using the formula (a + b)^{2} = a^{2} + 2ab + b^{2}

We get,

= (7a)^{2} + 2 × 7a × 6b + (6b)^{2}

= (7a + 6b)^{2}

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