Question

FACTORISE = 4X²+ 17x+15 THX

Answer 1

4 * 15 = 60

x * y = 60
x + y = 17

What two numbers multiply to get 60 and add to get 17

Answer 2

Answer:

$\sf (4x +5)(x+3)$

explanation:

$\sf 4x^2 + 17x + 15$

common term of 15 and 4 is 60: [ 12 * 5 ]

$\sf 4x^2 +12x+5x+ 15$

break down and factorise

$\sf 4x(x+3) +5(x+3)$

group them together

$\sf (4x +5)(x+3)$