1.
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.''
A.
6 + 3
x
B.
6(3
x
)
C.
6 + 3
x
2
D.
6(3
x
)
2
Hint
2.
Solve the equation
A.
-1
B.
9
C.
D.
20
Hint
3.
Solve
A.
12
B.
–12
C.
–25
D.
–1
Hint
4.
Solve
A.
B.
21
C.
D.
28
Hint
5.
Solve 3
x
= –42.
A.
14
B.
–45
C.
–14
D.
–39
Hint