Question

factorise 5x² + 17xy - 12y²
donating points to you hope it helps​

Answer 1

5x 2 +17xy−12y 2

⇒5x 2+20xy−3xy−12y 2

⇒5x(x+4y)−3y(x+4y)

⇒(5x−3y)(x+4y)

Answer 2

Step-by-step explanation:

5x² + 17xy - 12y²

= 5x² + 20xy - 3xy - 12y²

= 5x(x + 4y) - 3y(x + 4y)

= (5x-3y)(x+4y)