Question

x^2 – 5x + c = 0
In the quadratic equation above, c is a constant.
If the equation has two solutions for x, one of
which is -3, what is the value of the other
solution?​

Answer 1

Answer:

8

Step-by-step explanation:

substitute -3 in the given quadratic equation:

(-3)² - 5(-3) + c = 0

Solving for c:

c = -24

the quadratic equation will be:

x² - 5x - 24 = 0

solving for the value of x using quadratic formula:

x = [-b ±√(b² - 4(a)(c) )]/2a

x = [-(-5) ± √((-5)² - 4(1)(-24))]/2(1)

x = 8, -3

therefore the other solution is 8