Question

factorize by middle term break method a²-13ab-30b²? ​

Answer 1

Answer:

a² + 2ab - 15ab - 30b²

a( a + 2b) - 15b( a + 2b)

(a - 15b) ( a + 2b)

a - 15b = 0 : a + 2b = 0

a = 15b ; a = 2b

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Answer 2

To Factorise:

${\green{ {a}^{2} - 13ab - 30 {b}^{2} }}$

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SOLUTION:

$= = > {a}^{2} - 3ab - 10ab - 30 {b}^{2}$

$= = > a(a - 3b) - 10b(a - 3b)$

$= = >{\blue{ (a - 3b)(a - 10b)}}$

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