Question

solve the following quadratic equations using quadratic formula 21+X=2x²​

Answer 1

MARK IT AS BRAINLIEST

Answer 2

Answer:

2x^2-x-21

Step-by-step explanation:

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

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

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

(x+3)(2x-7)

x=-3,x=7/2