(7w+4)(3w-9)=0

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Solution for (7w+4)(3w-9)=0 equation:


Simplifying
(7w + 4)(3w + -9) = 0

Reorder the terms:
(4 + 7w)(3w + -9) = 0

Reorder the terms:
(4 + 7w)(-9 + 3w) = 0

Multiply (4 + 7w) * (-9 + 3w)
(4(-9 + 3w) + 7w * (-9 + 3w)) = 0
((-9 * 4 + 3w * 4) + 7w * (-9 + 3w)) = 0
((-36 + 12w) + 7w * (-9 + 3w)) = 0
(-36 + 12w + (-9 * 7w + 3w * 7w)) = 0
(-36 + 12w + (-63w + 21w2)) = 0

Combine like terms: 12w + -63w = -51w
(-36 + -51w + 21w2) = 0

Solving
-36 + -51w + 21w2 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-12 + -17w + 7w2) = 0

Factor a trinomial.
3((-4 + -7w)(3 + -1w)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-4 + -7w)' equal to zero and attempt to solve: Simplifying -4 + -7w = 0 Solving -4 + -7w = 0 Move all terms containing w to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -7w = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -7w = 0 + 4 -7w = 0 + 4 Combine like terms: 0 + 4 = 4 -7w = 4 Divide each side by '-7'. w = -0.5714285714 Simplifying w = -0.5714285714

Subproblem 2

Set the factor '(3 + -1w)' equal to zero and attempt to solve: Simplifying 3 + -1w = 0 Solving 3 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1w = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1w = 0 + -3 -1w = 0 + -3 Combine like terms: 0 + -3 = -3 -1w = -3 Divide each side by '-1'. w = 3 Simplifying w = 3

Solution

w = {-0.5714285714, 3}

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