1. Equations and Polynomials
Interactive practice questions
How many real solutions does the following equation have?
a
$x^2-64=0$x2−64=0
None
A
1 solution
B
2 solutions
C
More than 2 solutions
D
b
$x^2+64=0$x2+64=0
None
A
1 solution
B
2 solutions
C
More than 2 solutions
D
Easy
< 1min
Solve for $x$x:
$x^2-25=0$x2−25=0
Easy
< 1min
Solve for $x$x, expressing your answer in exact surd form.
$x^2=98$x2=98
Easy
1min
Solve $ax^2-c=0$ax2−c=0 for $x$x.
Assume $a$a and $c$c are positive.
Easy
1min
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