a^2+3a+4=(a+2)(a-5)

Simple and best practice solution for a^2+3a+4=(a+2)(a-5) 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 a^2+3a+4=(a+2)(a-5) equation:


Simplifying
a2 + 3a + 4 = (a + 2)(a + -5)

Reorder the terms:
4 + 3a + a2 = (a + 2)(a + -5)

Reorder the terms:
4 + 3a + a2 = (2 + a)(a + -5)

Reorder the terms:
4 + 3a + a2 = (2 + a)(-5 + a)

Multiply (2 + a) * (-5 + a)
4 + 3a + a2 = (2(-5 + a) + a(-5 + a))
4 + 3a + a2 = ((-5 * 2 + a * 2) + a(-5 + a))
4 + 3a + a2 = ((-10 + 2a) + a(-5 + a))
4 + 3a + a2 = (-10 + 2a + (-5 * a + a * a))
4 + 3a + a2 = (-10 + 2a + (-5a + a2))

Combine like terms: 2a + -5a = -3a
4 + 3a + a2 = (-10 + -3a + a2)

Add '-1a2' to each side of the equation.
4 + 3a + a2 + -1a2 = -10 + -3a + a2 + -1a2

Combine like terms: a2 + -1a2 = 0
4 + 3a + 0 = -10 + -3a + a2 + -1a2
4 + 3a = -10 + -3a + a2 + -1a2

Combine like terms: a2 + -1a2 = 0
4 + 3a = -10 + -3a + 0
4 + 3a = -10 + -3a

Solving
4 + 3a = -10 + -3a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '3a' to each side of the equation.
4 + 3a + 3a = -10 + -3a + 3a

Combine like terms: 3a + 3a = 6a
4 + 6a = -10 + -3a + 3a

Combine like terms: -3a + 3a = 0
4 + 6a = -10 + 0
4 + 6a = -10

Add '-4' to each side of the equation.
4 + -4 + 6a = -10 + -4

Combine like terms: 4 + -4 = 0
0 + 6a = -10 + -4
6a = -10 + -4

Combine like terms: -10 + -4 = -14
6a = -14

Divide each side by '6'.
a = -2.333333333

Simplifying
a = -2.333333333

See similar equations:

| 2x+19y=-11 | | -x+12=-48 | | X+10=91 | | -2x-9y=25 | | (x^2-9)•(x*2/4)(-6) | | 5x+2y^2=4 | | 6y+1=48x+73 | | 6y-1=48x+55 | | 17a+13b+6c+5c-6b-4a= | | 6y-1=48x+25 | | 6y-1=48x+12 | | 7(b-1)-5(2b+1)=3 | | 3x=12x-103 | | 4y+5=6x+12 | | 2y+3=4x+9 | | 2/5=3x/10 | | 13p+20q+p-7q-6p= | | (5x)/7=22 | | ok+1=37 | | (5x)/7 | | 2e-24=124 | | Xy-w=y-3w | | t-2=-12 | | 8x^3+2=0 | | y(6y-5)=6 | | 2tan^23x=6 | | 15-10=27-75y+9 | | 4*1/3= | | 4x=9(x-4) | | 3q+4=124 | | 11m+3n-5m+10n= | | b(-2c)=33 |

Equations solver categories