x2 = -11x - 10
x2 + 11x + 10 = 0
(x + 1)(x + 10) = 0
The factors of x2 are x and x.
x2 - 5x + 6 = (x - 2)(x - 3)
x2+9x-36 = (x-3)(x+12) when factored
The factor pairs of 111 are 1x111, 11x10. These are in order.
x2-5x-36 = (x-9(x+4) when factored
You take 11x10 then by 2...
Well, darling, 11 times 10 equals 110. It's basic math, not rocket science. So, there you have it. Math lesson complete.
If: x2 = 81 Then: x = 9 or x = -9
X squared equals x times x.
do you mean x2 + 3x + 2 ? Factors are (x +2)(x+1)
(x + 8)(x + 2)
x2 + x2 = 2x2
(20+5) + (11x10) -14
x2 - 42x + 441 = (x - 21)2
x1:y1 = x2:y2 4:-2 = x2:5 x2 = (4*5)/-2 x2 = -10
110
The given expression does not have rational factors, so the question cannot be abut factorising. Evaluating x2 - 14x + 9 depends on the value of x.