Solve with Squares

Practice

100

X^2=16

x=4 x=-4

200

X^2=4

X=2 x=-2

300

x^2=76

x=8.717, -8.717

Basics

100

X^2+7=88

X=9 x=-9

200

X^2-5=-4

X=1 x=-1

300

-7x^2=-488

X=8 x=-8

Advance

100

7x^2+1=29

X=2 x=-2

200

2x^2+10=210

X=10 x=-10

300

3-4x^2=-85

X=4.69 x=-4.69