-7a(5a+9)=0

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Solution for -7a(5a+9)=0 equation:


Simplifying
-7a(5a + 9) = 0

Reorder the terms:
-7a(9 + 5a) = 0
(9 * -7a + 5a * -7a) = 0
(-63a + -35a2) = 0

Solving
-63a + -35a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '-7a'.
-7a(9 + 5a) = 0

Ignore the factor -7.

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

Set the factor '(9 + 5a)' equal to zero and attempt to solve: Simplifying 9 + 5a = 0 Solving 9 + 5a = 0 Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 5a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 5a = 0 + -9 5a = 0 + -9 Combine like terms: 0 + -9 = -9 5a = -9 Divide each side by '5'. a = -1.8 Simplifying a = -1.8

Solution

a = {0, -1.8}

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