16x(-5x+9)=64

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Solution for 16x(-5x+9)=64 equation:


Simplifying
16x(-5x + 9) = 64

Reorder the terms:
16x(9 + -5x) = 64
(9 * 16x + -5x * 16x) = 64
(144x + -80x2) = 64

Solving
144x + -80x2 = 64

Solving for variable 'x'.

Reorder the terms:
-64 + 144x + -80x2 = 64 + -64

Combine like terms: 64 + -64 = 0
-64 + 144x + -80x2 = 0

Factor out the Greatest Common Factor (GCF), '16'.
16(-4 + 9x + -5x2) = 0

Factor a trinomial.
16((-1 + x)(4 + -5x)) = 0

Ignore the factor 16.

Subproblem 1

Set the factor '(-1 + x)' equal to zero and attempt to solve: Simplifying -1 + x = 0 Solving -1 + x = 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 + x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0 + 1 x = 0 + 1 Combine like terms: 0 + 1 = 1 x = 1 Simplifying x = 1

Subproblem 2

Set the factor '(4 + -5x)' equal to zero and attempt to solve: Simplifying 4 + -5x = 0 Solving 4 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -5x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5x = 0 + -4 -5x = 0 + -4 Combine like terms: 0 + -4 = -4 -5x = -4 Divide each side by '-5'. x = 0.8 Simplifying x = 0.8

Solution

x = {1, 0.8}

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