Given the quadratic equation x2-(a-3)x-(a-7)=0 , for what value of a will the sum of squares of the roots be zero
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Step-by-step explanation:
sum of square of roots = p²+q²
= (p+q)²-2pq
= (a-3)² + 2(a-7)
= a²+9-6a+2a-14
= a²-4a-5
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