(a-3b)(2a-5b)=

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Solution for (a-3b)(2a-5b)= equation:


Simplifying
(a + -3b)(2a + -5b) = 0

Multiply (a + -3b) * (2a + -5b)
(a(2a + -5b) + -3b * (2a + -5b)) = 0
((2a * a + -5b * a) + -3b * (2a + -5b)) = 0

Reorder the terms:
((-5ab + 2a2) + -3b * (2a + -5b)) = 0
((-5ab + 2a2) + -3b * (2a + -5b)) = 0
(-5ab + 2a2 + (2a * -3b + -5b * -3b)) = 0
(-5ab + 2a2 + (-6ab + 15b2)) = 0

Reorder the terms:
(-5ab + -6ab + 2a2 + 15b2) = 0

Combine like terms: -5ab + -6ab = -11ab
(-11ab + 2a2 + 15b2) = 0

Solving
-11ab + 2a2 + 15b2 = 0

Solving for variable 'a'.

Factor a trinomial.
(a + -3b)(2a + -5b) = 0

Subproblem 1

Set the factor '(a + -3b)' equal to zero and attempt to solve: Simplifying a + -3b = 0 Solving a + -3b = 0 Move all terms containing a to the left, all other terms to the right. Add '3b' to each side of the equation. a + -3b + 3b = 0 + 3b Combine like terms: -3b + 3b = 0 a + 0 = 0 + 3b a = 0 + 3b Remove the zero: a = 3b Simplifying a = 3b

Subproblem 2

Set the factor '(2a + -5b)' equal to zero and attempt to solve: Simplifying 2a + -5b = 0 Solving 2a + -5b = 0 Move all terms containing a to the left, all other terms to the right. Add '5b' to each side of the equation. 2a + -5b + 5b = 0 + 5b Combine like terms: -5b + 5b = 0 2a + 0 = 0 + 5b 2a = 0 + 5b Remove the zero: 2a = 5b Divide each side by '2'. a = 2.5b Simplifying a = 2.5b

Solution

a = {3b, 2.5b}

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