Question

factorize 30x2 + 7x - 15

Answer 1

The answer is in the picture

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Answer 2

30x² + 7x - 15

Splitting the middle term,

=> 30x² + 25x - 18x - 15

Taking out common factors,

=> 5x ( 6x + 5 ) - 3 ( 6x + 5 )

Again taking out common factors,

=> ( 6x + 5 ) ( 5x - 3 ), which are the required factors.

Hence,

30x² + 7x - 15 = ( 6x + 5 ) ( 5x - 3 )

The factors of 30x² + 7x - 15 are ( 6x + 5 ) and ( 5x - 3 ).