Question

form the quadratic equation if it's roots are 3 and - 10​

Answer 1

Answer:

xsquare-(3-10)x+(3×-10)

x squre +7x-30.

Step-by-step explanation:

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Answer 2

Answer:

If the roots of the quadratic equation are α and β, then it's factors are (x-α)(x-β).

then, (x-α)(x-β)=quadratic eq. whose roots are α and β

So, the quadratic eq. whose roots are 3 and -10 is (x-3)(x+10)

=x²+10x-3x-30=x²+7x-30