If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(X)(X+7)=450
We move all terms to the left:
(X)(X+7)-(450)=0
We multiply parentheses
X^2+7X-450=0
a = 1; b = 7; c = -450;
Δ = b2-4ac
Δ = 72-4·1·(-450)
Δ = 1849
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1849}=43$$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-43}{2*1}=\frac{-50}{2} =-25 $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+43}{2*1}=\frac{36}{2} =18 $
| -3(x+2)5x=-9 | | (4/3)x4=x | | 2(8+5x)=26 | | Z-2i*Z=5 | | 7(2y-3)=2(2y-10) | | a(4+7)=22 | | 85y=28(3y+3) | | 13^-x+9=8^5x | | 10x=3,500 | | X=0.5(x)+3 | | 72=2t-11t | | -10y+15(-17y-10)=4090 | | (1/2)x-9=-25 | | X-2+2x=-35 | | -1g-9=36 | | 7c-6c-1=9 | | 6.8=k/7 | | 3g+1=19 | | 10r-15r+6r=15 | | 12z-8z=-20 | | -1g-1=12 | | -1g-1=13 | | -1g-1=16 | | -4x^2+5x-10=0 | | -3(4x-3)=-12 | | 2x-1/5=9 | | 2x-4=×+12 | | 14x10=9x+15 | | +(2400x*3)+(2400*(1-x)*8=10200 | | 0.15-0.01(x+2)=-0.03(1-x) | | 9(2n+5)=8(9n+3)+4 | | -2y-4(-6+9)=4+3(1-y) |