Question

2) The product of a number and 8 less than
that is 65, what are the numbers?​

Answer 1

Answer:

13

Explanation:

Let the number is x,

then x (x - 8) = 65

or,

${x}^{2} - 8x - 65 = 0$

${x}^{2} - 13x + 5x - 65 = 0$

$x(x - 13) + 5(x - 13) = 0$

$(x - 13)(x + 5) = 0$

Hence the required number is 13.

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