Semester 1 Quick Review

Mathematical Equivalence

ON

If the SECOND sign is positive it tells you that when factored the signs are the ​ (a)   and the first sign tells you ​ (b)  

• same
• what they are
• opposite
• larger
• smaller

If the SECOND sign is negative, it tells you that when factors the signs are ​ (a)   and the first sign tells you what the ​ (b)   factor is

• opposite
• larger
• same
• smaller
• what they are

Mathematical Equivalence

ON

Mathematical Equivalence

ON

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

Solve for y:
-5 - 7y = -20y + 34

• y = 3
• y = 1
• y = 0.67
• y = 46

x² - (x - y)² ⋅ y        
 
If x = -5 and y = -8

• -47
• 1377
• -128
• 97

Mathematical Equivalence

ON