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Q: What is a factor of this trinomial x2 - 16x plus 63?

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(x - 7)(x - 9)

48x2+139+63 = (3x+7)(16x+9) when factored and worked out with the help of the quadratic equation formula

Simplifying x2 + -2x + -63 Reorder the terms: -63 + -2x + x2 Factor a trinomial. (-7 + -1x)(9 + -1x) Final result: (-7 + -1x)(9 + -1x)

(3x + 7)(2x - 9)

(8b + 7)(7b + 9)

(x - 7)(x + 9) = x2 + 2x - 63

6x2 - 13x - 63 = 6x2 + 14x - 27x - 63 = 2x(3x + 7) - 9(3x + 7) = (3x + 7)(2x - 9)

7(2x + 9)

(2x - 7)(2x - 9)

xy=63 x +y = 16 y = 16-x x(16-x) = 63 16x -x^2 -63 = 0 x^2 -16x+63 = 0 (x-9)(x-7) = 0 x = 9 y = 7

47

No; 3 is a factor of 63.

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