3a(5a-7)=

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Solution for 3a(5a-7)= equation:


Simplifying
3a(5a + -7) = 0

Reorder the terms:
3a(-7 + 5a) = 0
(-7 * 3a + 5a * 3a) = 0
(-21a + 15a2) = 0

Solving
-21a + 15a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3a'.
3a(-7 + 5a) = 0

Ignore the factor 3.

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 '(-7 + 5a)' equal to zero and attempt to solve: Simplifying -7 + 5a = 0 Solving -7 + 5a = 0 Move all terms containing a to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 5a = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 5a = 0 + 7 5a = 0 + 7 Combine like terms: 0 + 7 = 7 5a = 7 Divide each side by '5'. a = 1.4 Simplifying a = 1.4

Solution

a = {0, 1.4}

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