-2b^2-5b+10=3

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Solution for -2b^2-5b+10=3 equation:


Simplifying
-2b2 + -5b + 10 = 3

Reorder the terms:
10 + -5b + -2b2 = 3

Solving
10 + -5b + -2b2 = 3

Solving for variable 'b'.

Reorder the terms:
10 + -3 + -5b + -2b2 = 3 + -3

Combine like terms: 10 + -3 = 7
7 + -5b + -2b2 = 3 + -3

Combine like terms: 3 + -3 = 0
7 + -5b + -2b2 = 0

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

Subproblem 1

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

Subproblem 2

Set the factor '(7 + 2b)' equal to zero and attempt to solve: Simplifying 7 + 2b = 0 Solving 7 + 2b = 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 + 2b = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2b = 0 + -7 2b = 0 + -7 Combine like terms: 0 + -7 = -7 2b = -7 Divide each side by '2'. b = -3.5 Simplifying b = -3.5

Solution

b = {1, -3.5}

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