4x^2+10x=-9

Simple and best practice solution for 4x^2+10x=-9 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4x^2+10x=-9 equation:


Simplifying
4x2 + 10x = -9

Reorder the terms:
10x + 4x2 = -9

Solving
10x + 4x2 = -9

Solving for variable 'x'.

Reorder the terms:
9 + 10x + 4x2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + 10x + 4x2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.25 + 2.5x + x2 = 0

Move the constant term to the right:

Add '-2.25' to each side of the equation.
2.25 + 2.5x + -2.25 + x2 = 0 + -2.25

Reorder the terms:
2.25 + -2.25 + 2.5x + x2 = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + 2.5x + x2 = 0 + -2.25
2.5x + x2 = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
2.5x + x2 = -2.25

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = -2.25 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = -2.25 + 1.5625

Combine like terms: -2.25 + 1.5625 = -0.6875
1.5625 + 2.5x + x2 = -0.6875

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = -0.6875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x*4=x-57 | | 180=-18v | | 24/X=(2•6)-4 | | n/18=-2 | | 2. 24/X=(2*6)-4 | | -7=n/4 | | -16=p/13 | | n/15=12 | | 5/2=x/8 | | X+200(4)=0.60(x+4) | | S=32t+-16t^2 | | 1. 4X+7X+19=3*12-4+(5*16)-5 | | 4X+-3=9-2X | | 16c^2-121= | | 14=2*4+2*x | | x^2+12=-27 | | 33+23= | | (3c+7)(c+6)= | | 33+23=60 | | 4-(x+1)=10 | | 2.7a=13.5 | | 3x-(x-5)=0 | | x^2-mx+10=1 | | cos*6x-sin*7x=0 | | m+12=11 | | Log(8)-4x-log(8)6=1 | | y=-16t^2+256t | | x+(x+11.3)=722.7 | | 5(x+1)=(-10) | | x=0.3x^2+13.9 | | x*5+9=8*x | | 3/11=Y/10 |

Equations solver categories