Solved on Feb 11, 2024

Solve for ww in the quadratic equation 4w2=11w64 w^{2} = -11 w - 6. If there are multiple solutions, list them separately.

STEP 1

Assumptions
1. We are given a quadratic equation in the form 4w2+11w+6=04w^2 + 11w + 6 = 0.
2. We need to solve for the variable ww.
3. There may be two solutions since this is a quadratic equation.

STEP 2

Rewrite the given equation in standard quadratic form.
4w2+11w+6=04w^2 + 11w + 6 = 0

STEP 3

We will use the quadratic formula to solve for ww. The quadratic formula is given by:
w=b±b24ac2aw = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
where aa, bb, and cc are the coefficients of the terms w2w^2, ww, and the constant term, respectively, in the quadratic equation aw2+bw+c=0aw^2 + bw + c = 0.

STEP 4

Identify the coefficients aa, bb, and cc from the equation 4w2+11w+6=04w^2 + 11w + 6 = 0.
a=4,b=11,c=6a = 4, \quad b = 11, \quad c = 6

STEP 5

Substitute the values of aa, bb, and cc into the quadratic formula.
w=11±11244624w = \frac{-11 \pm \sqrt{11^2 - 4 \cdot 4 \cdot 6}}{2 \cdot 4}

STEP 6

Simplify the expression under the square root (the discriminant).
112446=1219611^2 - 4 \cdot 4 \cdot 6 = 121 - 96

STEP 7

Calculate the discriminant.
12196=25121 - 96 = 25

STEP 8

Substitute the discriminant back into the quadratic formula.
w=11±2524w = \frac{-11 \pm \sqrt{25}}{2 \cdot 4}

STEP 9

Take the square root of the discriminant.
25=5\sqrt{25} = 5

STEP 10

Substitute the square root of the discriminant into the quadratic formula.
w=11±58w = \frac{-11 \pm 5}{8}

STEP 11

Solve for ww by using the plus sign in the ±\pm symbol.
w=11+58w = \frac{-11 + 5}{8}

STEP 12

Calculate the value of ww for the plus sign.
w=68w = \frac{-6}{8}

STEP 13

Simplify the fraction.
w=34w = -\frac{3}{4}

STEP 14

Now solve for ww by using the minus sign in the ±\pm symbol.
w=1158w = \frac{-11 - 5}{8}

STEP 15

Calculate the value of ww for the minus sign.
w=168w = \frac{-16}{8}

STEP 16

Simplify the fraction.
w=2w = -2
The solutions for ww are 34-\frac{3}{4} and 2-2.

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