# Math

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find a value to complete the expression x^2 + ?x +30 so that it can be factored into the product of two binomials.how can i find the value?

• Math -

There are many possible answers. Here are some with integers.

x^2 + 11x + 30 = (x+6)(x+5)
x^2 - 11x + 30 = (x-6)(x-5)
x^2 - 17x + 30 = (x-15)(x-2)
x^2 + 17x + 30 = (x+15)(x+2)
x^2 - 31x + 30 = (x-1)(x-30)

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