If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
9x * 9x = 49
Reorder the terms for easier multiplication:
9 * 9x * x = 49
Multiply 9 * 9
81x * x = 49
Multiply x * x
81x2 = 49
Solving
81x2 = 49
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '81'.
x2 = 0.6049382716
Simplifying
x2 = 0.6049382716
Take the square root of each side:
x = {-0.777777778, 0.777777778}
| 2x^2-3xy-2y^2=12 | | 3xy*4=0 | | 3w+14=7w-14 | | 176-3x=33x+16 | | -10(2-x)=5(3x+1) | | -86-8x=10x-8x | | 4(-3y+7)-8y=48 | | 3a+7=10a | | 3(4x+3)+5=12x+14 | | 65-4x=23x+17 | | 2.5x+32.9=2.3-12.8x | | -3(x-8)+7x=12 | | -4(2n-5)=-8-20 | | -7(-2+4x)=0 | | 12-8x=78-22x | | .2x+1.2=1.25 | | (4x-7)(5x+6)=0 | | 4x-3=1/2(4x-2) | | -78-9x=10+17 | | 42-13=17n+12 | | 2v-4=6v-12 | | 20=4-4r | | 12=x-24 | | z^2+3z+1=0 | | 2.5x+32.9= | | -(8y+1)-(-7y-5)=-3 | | X^2+14x+8=0 | | 9+5x=x+3 | | 16x^2+46x+35=0 | | 4(7x+9)=8(7x+1) | | x+6/2=-4 | | 0.24-0.02(x+3)=-0.04(3-x) |