7a^2+70=49a

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Solution for 7a^2+70=49a equation:


Simplifying
7a2 + 70 = 49a

Reorder the terms:
70 + 7a2 = 49a

Solving
70 + 7a2 = 49a

Solving for variable 'a'.

Reorder the terms:
70 + -49a + 7a2 = 49a + -49a

Combine like terms: 49a + -49a = 0
70 + -49a + 7a2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(10 + -7a + a2) = 0

Factor a trinomial.
7((2 + -1a)(5 + -1a)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2

Subproblem 2

Set the factor '(5 + -1a)' equal to zero and attempt to solve: Simplifying 5 + -1a = 0 Solving 5 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1a = 0 + -5 -1a = 0 + -5 Combine like terms: 0 + -5 = -5 -1a = -5 Divide each side by '-1'. a = 5 Simplifying a = 5

Solution

a = {2, 5}

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