Engage with knowledgeable experts and get accurate answers on IDNLearn.com. Get the information you need from our community of experts who provide accurate and thorough answers to all your questions.

It is given that -3 is one of the roots of the quadratic equation x square -4x-h=0.find the value of h

It Is Given That 3 Is One Of The Roots Of The Quadratic Equation X Square 4xh0find The Value Of H class=

Sagot :

Since -3 is one of the roots, that means it would satisfy the equation.

x^2 - 4x - h = 0,    substitute x = -3.

(-3)^2 -4(-3) - h = 0
9  +  12  -  h      = 0
21 - h = 0
21 =  h.
h  = 21.
That's the value of h.  Cheers.