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Kassidy Dougherty
Mathematics
21 January, 04:19
What is the answer to 3w squared + 14w+8=0
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Julius Cannon
21 January, 04:46
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3w² + 14w + 8 = 0
Multiply first and last coefficients: 3*8 = 24
We look for two numbers that multiply to give 24, and add to give the middle coefficient + 14
Those two numbers are 2 and 12.
Check: 2*12 = 24 2 + 12 = 14
We replace the middle term of 14w in the quadratic expression with 2w + 12w
3w² + 14w + 8 = 0
3w² + 2w + 12w + 8 = 0
w (3w + 2) + 4 (3w + 2) = 0
(3w + 2) (w + 4) = 0
3w + 2 = 0 or w + 4 = 0
3w = 0 - 2 w = 0 - 4
3w = - 2 w = - 4
w = - 2/3
The solutions are w = - 2/3 or - 4
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