Quadratics

Question

How to factor each trinomial

a) x^2+x-20

 

b) 4x^2-32x+60

 

c)x^2-25

 

d) 7x^2 + 14x

Answer 1

a) x²+x-20 = (x+5)(x-4)

 

b) 4x²-32x+60 = (4x-20)(x-3)

 

c)x²-25 = (x+5)(x-5)

 

d)7x²+14x = 7x(x+2)