Question 421936: Please help me answer thrse questions:
1.It is given that -2 is one of the roots of the quadratic equation h-8x-2x^2=0.Find the value of h.
2. The quadratic equation 8px^2+3=4p-4x,where p is a constant,has two equal roots.Find values of p.
3. px^2+2qx+4=0,where p and q are constant,has equal roots.express q in term of p.
thanx a lot 4 spending your time solving these questions.
Answer by shree840(260)   (Show Source):
You can put this solution on YOUR website! 2x^2+8x-h=0 we know 2 is a root we can divide by x-2
2x^2+8x-h
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x-2}
x-2){2x^2+8x-h} -------2x+4
2x^2-4x
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4x-h
4x-8
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for the result to be 0 h has to be 8
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