Question

If the roots of a quadratic equation are
-1 and 3, then the quadratic equation
is
(A) x² - 2x - 3 = 0
(B) x²+ 2x - 3 = 0
(C) x²- 2x + 3 = 0
(D) x²+ 2x + 3 = 0​

Answer 1

Answer:

Ques = x²-2x-3=0

• common factor of 3 are 1 and 3
• roots we have -1 and 3
• so if we subtract we will get 2x of positive

so the equation becomes x²+2x+3=0