-2b^2+5ab+7a^2=

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Solution for -2b^2+5ab+7a^2= equation:


Simplifying
-2b2 + 5ab + 7a2 = 0

Reorder the terms:
5ab + 7a2 + -2b2 = 0

Solving
5ab + 7a2 + -2b2 = 0

Solving for variable 'a'.

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

Subproblem 1

Set the factor '(7a + -2b)' equal to zero and attempt to solve: Simplifying 7a + -2b = 0 Solving 7a + -2b = 0 Move all terms containing a to the left, all other terms to the right. Add '2b' to each side of the equation. 7a + -2b + 2b = 0 + 2b Combine like terms: -2b + 2b = 0 7a + 0 = 0 + 2b 7a = 0 + 2b Remove the zero: 7a = 2b Divide each side by '7'. a = 0.2857142857b Simplifying a = 0.2857142857b

Subproblem 2

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

Solution

a = {0.2857142857b, -1b}

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