20a^2+17ar-63r^2=

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Solution for 20a^2+17ar-63r^2= equation:


Simplifying
20a2 + 17ar + -63r2 = 0

Reorder the terms:
17ar + 20a2 + -63r2 = 0

Solving
17ar + 20a2 + -63r2 = 0

Solving for variable 'a'.

Factor a trinomial.
(5a + -7r)(4a + 9r) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(4a + 9r)' equal to zero and attempt to solve: Simplifying 4a + 9r = 0 Solving 4a + 9r = 0 Move all terms containing a to the left, all other terms to the right. Add '-9r' to each side of the equation. 4a + 9r + -9r = 0 + -9r Combine like terms: 9r + -9r = 0 4a + 0 = 0 + -9r 4a = 0 + -9r Remove the zero: 4a = -9r Divide each side by '4'. a = -2.25r Simplifying a = -2.25r

Solution

a = {1.4r, -2.25r}

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