x^2+8x=20
x^2+8x-20=0
(x+10)(x-2)=0
x=-10 and x=2 are the roots (intercepts)
(-10,0) and (2,0) are the x-intercepts.
20 and the vertex of the parabola is at (3, 20)
20 = 400
2x2 + 3x - 20 = (x + 4)(2x - 5).
3x^2=-20 so x^2=-20/3 this has no real roots but the plus of minus i(square root of 20/3) is a solution if we allow complex numbers.
20 plus 20 equals 4020 plus 20 = 40
Yes.
x2 = x+20 x2-x-20 = 0 (x-5)(x+4) = 0 x = 5 or x = -4
803 + 20 = 823823 - 100 = 723803 plus 20 minus 100 equals 723.
205
20 percent is equivalent to .20 multiply 280 by .20 equals 56 280 plus 56 equals 336
1985 plus 20 is 2005
-15 plus 20 is 5.