Factorising, we obtain, x2 + 10x + 21 = (x + 7)(x + 3). Thus, x2 + 10x + 21 / (x + 3) = x + 7. That's usually easier than dividing it out!
That depends what the value of x is.
x^2 + 10x + 16 = (x + 8)(x + 2)
8 = 10x/(10 + x) Multiply both sides by (10 + x) to give: 8*(10+x) = 10x Simplify: 80 + 8x = 10x Subtract 8x from both sides: 80 = 2x Divide both sides by 2: 40 = x
x = 6 Why? 10x + 8 = 68 Subtract 8 from both sides: 10x = 60 Divide both sides by 10: x = 6
Factorising, we obtain, x2 + 10x + 21 = (x + 7)(x + 3). Thus, x2 + 10x + 21 / (x + 3) = x + 7. That's usually easier than dividing it out!
x2 + 9x2 = 10x2
3x2 + 10x + 3 = (x + 3)(3x + 1).
That depends what the value of x is.
x^2 + 10x + 16 = (x + 8)(x + 2)
6x2 + 10x = 2x*(3x + 5)
-3.
x^2+10*x+2.99792e+08
Are you seeking the factors? 7x2 - 10x + 3 = (x - 1)(7x - 3).
(x - 7)(x - 3)
( x^2 + 10x )^2 = ( x^2 + 10 x) ( x^2 + 10x ) = x^4 + 10x^3 + 10x^3 + 100x^2 = x^4 + 20x^3 + 100x^2 <----------------
8 = 10x/(10 + x) Multiply both sides by (10 + x) to give: 8*(10+x) = 10x Simplify: 80 + 8x = 10x Subtract 8x from both sides: 80 = 2x Divide both sides by 2: 40 = x