10(x-1)(4x+7)=0

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Solution for 10(x-1)(4x+7)=0 equation: 


Simplifying
10(x + -1)(4x + 7) = 0

Reorder the terms:
10(-1 + x)(4x + 7) = 0

Reorder the terms:
10(-1 + x)(7 + 4x) = 0

Multiply (-1 + x) * (7 + 4x)
10(-1(7 + 4x) + x(7 + 4x)) = 0
10((7 * -1 + 4x * -1) + x(7 + 4x)) = 0
10((-7 + -4x) + x(7 + 4x)) = 0
10(-7 + -4x + (7 * x + 4x * x)) = 0
10(-7 + -4x + (7x + 4x2)) = 0

Combine like terms: -4x + 7x = 3x
10(-7 + 3x + 4x2) = 0
(-7 * 10 + 3x * 10 + 4x2 * 10) = 0
(-70 + 30x + 40x2) = 0

Solving
-70 + 30x + 40x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '10'.
10(-7 + 3x + 4x2) = 0

Factor a trinomial.
10((-7 + -4x)(1 + -1x)) = 0

Ignore the factor 10.

Subproblem 1
Set the factor '(-7 + -4x)' equal to zero and attempt to solve:

Simplifying
-7 + -4x = 0

Solving
-7 + -4x = 0

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

Add '7' to each side of the equation.
-7 + 7 + -4x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -4x = 0 + 7
-4x = 0 + 7

Combine like terms: 0 + 7 = 7
-4x = 7

Divide each side by '-4'.
x = -1.75

Simplifying
x = -1.75

Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-1.75, 1}

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