3x(7x+4)=33

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Solution for 3x(7x+4)=33 equation:


Simplifying
3x(7x + 4) = 33

Reorder the terms:
3x(4 + 7x) = 33
(4 * 3x + 7x * 3x) = 33
(12x + 21x2) = 33

Solving
12x + 21x2 = 33

Solving for variable 'x'.

Reorder the terms:
-33 + 12x + 21x2 = 33 + -33

Combine like terms: 33 + -33 = 0
-33 + 12x + 21x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-11 + 4x + 7x2) = 0

Factor a trinomial.
3((-11 + -7x)(1 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-11 + -7x)' equal to zero and attempt to solve: Simplifying -11 + -7x = 0 Solving -11 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -7x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -7x = 0 + 11 -7x = 0 + 11 Combine like terms: 0 + 11 = 11 -7x = 11 Divide each side by '-7'. x = -1.571428571 Simplifying x = -1.571428571

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 = {-1.571428571, 1}

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