Solve using the quadratic formula.7g2−8g−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.7g2−8g−9=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.g=_____ or g=_____
Identify values of a, b, c: Identify the values of a, b, and c in the quadratic equation7g2−8g−9=0. Compare 7g2−8g−9=0 with the standard form ax2+bx+c=0. a=7b0b1
Substitute values into quadratic formula: Substitute the values of a, b, and c into the quadratic formula g=2a−b±b2−4ac. Substitute a=7, b=−8, and c=−9 into the formula. g=2⋅7−(−8)±(−8)2−4⋅7⋅(−9)g=148±64+252
Simplify expression and calculate discriminant: Simplify the expression under the square root and calculate the discriminant.64+252 = 316
Continue with quadratic formula: Continue with the quadratic formula using the simplified discriminant.g=148±316Calculate the two possible solutions for g.g=148+316 or g=148−316
Simplify solutions and round: Simplify the solutions and, if necessary, round to the nearest hundredth.g=148+316 or g=148−316g≈148+17.78 or g≈148−17.78g≈1425.78 or g≈14−9.78g≈1.84 or g≈−0.70
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