Match each quadratic equation with its solution set.

2x²-32 ⇒ x²=16⇒ (-4,4)

4x²-100 ⇒x²=25 ⇒(-5,5)

x²-55=9 ⇒x²=64 ⇒(-8,8)

x²-140=-19 ⇒x²=121 ⇒(-11,11)

2x²-18=0 ⇒x²=9 ⇒(-3,3)

The draw in the attached figure

Step-by-step explanation:

1) A right triangle  is a triangle that has one right interior angle

see the attached triangle ABC to better understand the problem

2) An acute triangle , is a triangle that has the three interior angles less than 90 degrees

see the attached triangle DEF to better understand the problem

3) An obtuse triangle , is a triangle that has one interior angle greater than 90 degrees

see the attached triangle XYZ to better understand the problem