Question

Factorize fully.
1. 10x²-3x-4
2. x²-9x+ 20
3. 2x²-8

Answer 1

Step-by-step explanation:

2)x'2 -9c+20

x'2-4x-5x+20

(x-5) (x-4)

Answer 2

Answer:

1) 10x² +5x-8x-4

5x(2x+1) -4(2x+1)

(5x-4) (2x+1)

2) x² -9x+20

x²-5x-4x+20

x(x-5) -4(x-5)

(x-4) (x-5)

3) 2x²-8

2(x²-4)

2(x²+2x-2x-4)

2(x(x+2)-2(x+2))

2(x-2) (x+2)