Mai and Jada are solving the equation 2r-71 = 15 using the quadratic formula but found different solutions. Mai wrote: -7+,/7-4(2)(-15) 2(2) -7+,/49-(-120) 4. -7+V169 4. -713 エー-5 or z= } Jada wrote: --7)+/-7-4(2)(-15) 2(2) 74/-49-(-120) 4. 74 71 a. If this equation is written in standard form, az + br + c=0 what are the values of a, b, and c? Type the answers in the boxes below. b. Do you agree with either of them?
Mai and Jada are solving the equation 2r-71 = 15 using the quadratic formula but found different solutions. Mai wrote: -7+,/7-4(2)(-15) 2(2) -7+,/49-(-120) 4. -7+V169 4. -713 エー-5 or z= } Jada wrote: --7)+/-7-4(2)(-15) 2(2) 74/-49-(-120) 4. 74 71 a. If this equation is written in standard form, az + br + c=0 what are the values of a, b, and c? Type the answers in the boxes below. b. Do you agree with either of them?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.3: Solving Quadratic Equations By Graphing
Problem 35PPS
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