Solve using the quadratic formula.g2+7g+9=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.g=_____ or g=_____
Q. Solve using the quadratic formula.g2+7g+9=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.g=_____ or g=_____
Quadratic Formula: The quadratic formula is given by g=2a−b±b2−4ac, where a, b, and c are the coefficients of the terms in the quadratic equationax2+bx+c=0. In this case, a=1, b=7, and c=9.
Calculate Discriminant: First, calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac. Here, it is 72−4(1)(9)=49−36=13.
Apply Quadratic Formula: Now, apply the quadratic formula with the values of a, b, and c:g=2×1−7±13g=2−7±13
Solutions as Irrational Numbers: Since the discriminant is positive but not a perfect square, the solutions will be irrational numbers. We cannot simplify 13 to a rational number, so we leave it as is and write the solutions as:g=2−7+13 or g=2−7−13
Solutions as Decimals: To express the solutions as decimals rounded to the nearest hundredth, we calculate each one:g=2−7+13≈2−7+3.61≈2−3.39≈−1.70g=2−7−13≈2−7−3.61≈2−10.61≈−5.30
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