Solving Equations with Square Root
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Wayground Content
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Student preview
15 questions
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1.
FLASHCARD QUESTION
Front
What is the square root of a number?
Back
The square root of a number x is a value y such that y² = x. It can be positive or negative.
Tags
CCSS.8.EE.A.2
2.
FLASHCARD QUESTION
Front
How do you isolate x in the equation x² = a?
Back
To isolate x, take the square root of both sides: x = ±√a.
Tags
CCSS.8.EE.A.2
3.
FLASHCARD QUESTION
Front
What is the solution to the equation 7x² + 1 = 8?
Back
x = ±1.
Tags
CCSS.8.EE.A.2
4.
FLASHCARD QUESTION
Front
What is the first step to solve the equation 10 - 3a² = -2?
Back
Subtract 10 from both sides: -3a² = -12.
Tags
CCSS.8.EE.A.2
5.
FLASHCARD QUESTION
Front
What do you do after isolating a² in the equation 5x² = 500?
Back
Divide both sides by 5 to get x² = 100, then take the square root.
Tags
CCSS.8.EE.A.2
6.
FLASHCARD QUESTION
Front
What are the solutions to the equation x² = 100?
Back
x = 10 or x = -10.
Tags
CCSS.8.EE.A.2
7.
FLASHCARD QUESTION
Front
What does it mean if an equation has no real solutions?
Back
It means that the equation cannot be satisfied by any real number.
Tags
CCSS.HSA-REI.B.4B
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