Math, asked by harshubhat1482, 1 year ago

Factorise -

x3- 9x2+6x +56

Answers

Answered by Anonymous
13

=> x³ + 4x² + 5x² + 6x - 56 [Factor like terms] 
=> x²(x + 4) + (x + 4)(5x - 14) 
=> (x² + 5x - 14)(x + 4)² [Factor x² + 5x - 14] 
=> (x - 2)(x + 7)(x + 4) 
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