Multiple choice

State whether true or false: After solving the quadratic equation $y^{2}-16y+63=0$ by factorization method, then $y\, =\, 9$ or $7$

  1. True

  2. False
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A Correct answer
Explanation

y^2 - 16y + 63 = 0. (y-9)(y-7) = 0. Roots are 9 and 7.

AI explanation

To solve y^2 - 16y + 63 = 0, we find two numbers that multiply to 63 and add to -16, which are -7 and -9. This gives the factors (y - 7)(y - 9) = 0. Setting each factor to zero results in y = 7 or y = 9, making the statement True.

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