Question

Split the middle term:2x^2-x+21

Answer 1

Solution :

2x² - x + 21

2x² + 6x - 7x + 21

2x(x + 3) - 7(x + 3)

(x + 3)(2x - 7)

Answer 2

Answer:

x=7/2

x= -3

Step-by-step explanation:

2x^2-x+21

2x^2+6x-7x+21

(2x^2+6x)(-7x+21)

2x(x+3)-7(x+3)

(2x-7)(x+3)

x+3=0

x= -3

2x-7=0

x=7/2