(x+4)(x+3)=x^2+222

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Solution for (x+4)(x+3)=x^2+222 equation:


Simplifying
(x + 4)(x + 3) = x2 + 222

Reorder the terms:
(4 + x)(x + 3) = x2 + 222

Reorder the terms:
(4 + x)(3 + x) = x2 + 222

Multiply (4 + x) * (3 + x)
(4(3 + x) + x(3 + x)) = x2 + 222
((3 * 4 + x * 4) + x(3 + x)) = x2 + 222
((12 + 4x) + x(3 + x)) = x2 + 222
(12 + 4x + (3 * x + x * x)) = x2 + 222
(12 + 4x + (3x + x2)) = x2 + 222

Combine like terms: 4x + 3x = 7x
(12 + 7x + x2) = x2 + 222

Reorder the terms:
12 + 7x + x2 = 222 + x2

Add '-1x2' to each side of the equation.
12 + 7x + x2 + -1x2 = 222 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
12 + 7x + 0 = 222 + x2 + -1x2
12 + 7x = 222 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
12 + 7x = 222 + 0
12 + 7x = 222

Solving
12 + 7x = 222

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 7x = 222 + -12

Combine like terms: 12 + -12 = 0
0 + 7x = 222 + -12
7x = 222 + -12

Combine like terms: 222 + -12 = 210
7x = 210

Divide each side by '7'.
x = 30

Simplifying
x = 30

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