What is true about Marcus's work? Check all that Marcus solved for x in the quadratic equation x2 – 10x + 25 = 0. apply. O Marcus should have substituted –10 for b, not 10. 1. x = -btyb? - 4ac 2a O The denominator should be 1, not 2. 2. -(10) ±V(10)2 + 4(1)(25) O Marcus should have subtracted 4(1)(25) in the 2(1) square root. O This equation, when solved correctly, only has 1 real number solution. 3. - 10±/200 x = O This equation has 2 real number solutions.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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What is true about Marcus's work? Check all that
Marcus solved for x in the quadratic equation x2 - 10x +
25 = 0.
apply.
O Marcus should have substituted -10 for b, not 10.
1
-b±yb2 - 4ac
2a
The denominator should be 1, not 2.
2.
-(10) ±y (10)2+ 4(1)(25)
O Marcus should have subtracted 4(1)(25) in the
2(1)
square root.
O This equation, when solved correctly, only has 1
real number solution.
3.
- 10+/200
x =
O This equation has 2 real number solutions.
Transcribed Image Text:What is true about Marcus's work? Check all that Marcus solved for x in the quadratic equation x2 - 10x + 25 = 0. apply. O Marcus should have substituted -10 for b, not 10. 1 -b±yb2 - 4ac 2a The denominator should be 1, not 2. 2. -(10) ±y (10)2+ 4(1)(25) O Marcus should have subtracted 4(1)(25) in the 2(1) square root. O This equation, when solved correctly, only has 1 real number solution. 3. - 10+/200 x = O This equation has 2 real number solutions.
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