Question

Write the quadratic equation whose roots are 1 and -3, and whose leading coefficient is 1.

(Use the letter X to represent the variable)

Answer 1

y = x²+2x-3

Explanation:

y = a(x-p)(x-q)

p = 1

q = -3

a = 1

y = 1(x-1)(x-(-3))

y = (x-1)(x+3)

y = x²+2x-3