20b^2-17b=63

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Solution for 20b^2-17b=63 equation:


Simplifying
20b2 + -17b = 63

Reorder the terms:
-17b + 20b2 = 63

Solving
-17b + 20b2 = 63

Solving for variable 'b'.

Reorder the terms:
-63 + -17b + 20b2 = 63 + -63

Combine like terms: 63 + -63 = 0
-63 + -17b + 20b2 = 0

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

Subproblem 1

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

Subproblem 2

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

Solution

b = {-1.4, 2.25}

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