Solve using the quadratic formula.8m2−3m−9=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.m=_____ or m=_____
Q. Solve using the quadratic formula.8m2−3m−9=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.m=_____ or m=_____
Quadratic Formula: The quadratic formula is given by m=2a−b±b2−4ac, where a, b, and c are the coefficients from the quadratic equationam2+bm+c=0. In this case, a=8, b=−3, and c=−9.
Calculate Discriminant: First, calculate the discriminant, which is the part under the square root in the quadratic formula: b2−4ac. Discriminant = (−3)2−4(8)(−9)=9+288=297.
Apply Quadratic Formula: Now, apply the quadratic formula using the values of a, b, and c.m=2×8−(−3)±297m=163±297
Simplify 297: Since the discriminant is positive, there will be two real solutions. We need to simplify 297.297 is not a perfect square, so it cannot be simplified to an integer. We will leave it as 297.
Calculate Solutions: Now, we will calculate the two solutions for m. m1=163+297m2=163−297
Approximate Solutions: These solutions can be approximated as decimals if necessary, but the question asks for integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.m1≈(3+17.23)/16≈20.23/16≈1.26m2≈(3−17.23)/16≈−14.23/16≈−0.89
Round Decimal Solutions: Round the decimal solutions to the nearest hundredth. m1≈1.26 (rounded to 1.26)m2≈−0.89 (rounded to −0.89)
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