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I will assume you mean 7x + 5. In general, a binomial (two terms) can ONLY be factored if both terms have a common factor, OR you have a difference of squares. No other cases are possible, since the product of two binomials is, in general, a trinomial (three terms). Since none of these special cases apply, the expression can't be factored.

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7x5 has three factors: 5, 7 and x.

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Q: Why can't 7x 5 be factored?

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"(x - 5)(x - 2)"

(2x + 1)(5x - 6)

It is: 12x2-7x-12 equals (4x+3)(3x-4) when factored

If you mean: x squared -7x +12 then it is (x-3)(x-4) when factored

x2 - 7x = 8 x2 - 7x - 8 = 0Now find two numbers that multiply to equal -8, and add to equal -7.(1) * (-8) = -8(1) + (-8) = -7(x+1)(x-8) = 0 This is the factored form of x2 - 7x = 8You can then solve the equation if necessary, and get:x = -1 or x = +8

Related questions

3x2 - 7x - 20 = (3x + 5)(x - 4)

It is 7(-x -5) when factored

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2x2 + 7x - 15 = (2x - 3)(x + 5)

24ab - 42ax - 20b + 35x = 6a(4b - 7x) - 5(4b - 7x) = (4b - 7x)(6a - 5)

"(x - 5)(x - 2)"

When factored it is: (7x+8)(7x-9)

x2+7x-18 = (x+9)(x-2) when factored

It is a quadratic expression and when factored it is: (7x+5)(2x-7)

It is (7x+5)(2x-7) when factored

If you mean: 7x+91 then it can be factored to 7(x+13)

x2-7x-18 = (x-9)(x+2) when factored