3w^2+5w-42=0

Solution for 3w^2+5w-42=0 equation:

Simplifying
3w2 + 5w + -42 = 0

Reorder the terms:
-42 + 5w + 3w2 = 0

Solving
-42 + 5w + 3w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-14 + -3w)(3 + -1w) = 0

Subproblem 1
Set the factor '(-14 + -3w)' equal to zero and attempt to solve:

Simplifying
-14 + -3w = 0

Solving
-14 + -3w = 0

Move all terms containing w to the left, all other terms to the right.

Add '14' to each side of the equation.
-14 + 14 + -3w = 0 + 14

Combine like terms: -14 + 14 = 0
0 + -3w = 0 + 14
-3w = 0 + 14

Combine like terms: 0 + 14 = 14
-3w = 14

Divide each side by '-3'.
w = -4.666666667

Simplifying
w = -4.666666667
Subproblem 2
Set the factor '(3 + -1w)' equal to zero and attempt to solve:

Simplifying
3 + -1w = 0

Solving
3 + -1w = 0

Move all terms containing w to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -1w = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1w = 0 + -3
-1w = 0 + -3

Combine like terms: 0 + -3 = -3
-1w = -3

Divide each side by '-1'.
w = 3

Simplifying
w = 3
Solution
w = {-4.666666667, 3}