What is the measure of angle A'B'C?
1 answer:
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Step-by-step explanation:
A portion of the Quadratic Formula proof is shown. Fill in the missing reason. Statements Reasons ax2 + bx + c = 0 Given ax2 + bx = -c Subtract c from both sides of the equation b LC a Divide both sides of the equation by a a b b с b b (x²+x+ Complete the square and add to both sides 2a a 2a 2a С b? b x2 Square on the right side of the equation a + a 2a 2a 4a? 4ac b2 + a Find a common denominator on the right side of the equation 2a 4a2 + 4a2 0 x2 + x + -4ac 4a Add the fractions together on the right side of the equation a 2a b? - 4ac b 2a 4a Rewrite the perfect square trinomial as a binomial squared on the left side of the equation Take the square root of both sides of the equation Multiply both sides of the equation by 2 Square the left side of the equation .