9x2 + 30x + 25
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
x = 3
9x2 + 30x + 25
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
8x - 23= 3x + 2 +23 +23 8x=3x + 25 -3x -3x 5x=25 x=5 the answer is X=5
-2x^4+16 +2x^4+9-3x^5=-3x^5+25. There is no "answer" because there is no equation.
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
That can be factored to (3x - 5)(3x - 5) or (3x - 5)2
You can't simplify this expression. You can calculate a value (a number) only if you happen to know how much "x" is.
x = 3
(x^2 - 3x + 5)(x^2 + 3x + 5)
25-7=18 18/3=6
3x + 1 = 25Subtract 1 from both sides:3x = 24Divide both sides by 3:x = 8