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Q: What is x squared minus 4x?

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x2 - 4x - 21 = (x-7)(x+3)

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It is a quadratic expression

(4x - 1)(x - 5)

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4(x - 1)(x + 1)

x2-4x-165 = (x-15)(x+11) when factored

x - 2

x^2-4x/x^2-6x+8 = x(x-4)/(x-2)(x-4) = x/(x-2)

I assume you wanted this factored: (x+6)(x-2)

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4x^4 or 4x*4x*4x*4x A formula would be (x^a)(x^b)= x^a+b x^a) / (x^b)= x^a-b

(4x-5)(4x+5)

4x2+4x-8 4(x2+x-2) and (4x+8)(x-1)

Find factors of -5 that can be added to make -4, in this case -5 and 1, so: (x - 5)(x + 1) = x2 - 4x - 5

8x2-10x-3 = (2x-3)(4x+1) when factored

4x2 - x - 3 = 0 (x - 1)(4x + 3) = 0 So x - 1 = 0 or 4x + 3 = 0 ie x = 1 or = -3/4 = -0.75

It is: x-4x = -3x

x = ? 42 = x squared minus x

4x2 - x - 5 = 0 4x2 + 4x - 5x - 5 = 0 4x(x + 1) - 5(x + 1) = 0 (4x - 5)(x + 1) = 0 4x - 5 = 0 or x + 1 = 0 4x = 5 or x = -1 x = 5/4 o x = -1

-x2+2x

Yes and x = 2+square root of 6 or x = 2-square root of 6