2
d/dx 2x^2 = 4x
2x+8x-2=22 10x-2=22 10x+2=+2 10x=24 10/10=24/10 x=2.4
10x ÷ 2 = 7 → 10x = 2 × 7 → x = (2 × 7) ÷ 10 → 2x = 2 × (2 × 7) ÷ 10 = 2.8
10x^2 - x - 2 = (5x + 2)(2x - 1)
2
2x squared can best be describe as some variable being double and then squared.
2x -2 squared = 0
When you subtract 7x^2 from 5x^2, you get -2x^2.
2x2 - 9x + 10 = 2x2 - 4x - 5x + 10 = 2x(x - 2) - 5(x - 2) = (x - 2)(2x - 5)
18
2
2/(2x - 10) = 2*[2*(x - 5)] = 1/(x-5)
- ln ((x^2)-4)
After long division, (2x2-5x+5)/(x-2) = 2x-1+3/(x-2).
8
2 plus 1-x divided by.