Match each quadratic equation with its solution set

You missed the equations ...

2x2 - 32 = 0 ... a

4x2 - 100 = 0 ... b

x2 - 55 = 9 ... c

x2 - 140 = - 19 ... d

2x2 - 18 = 0 ... e

Answers

a = > x = (+4,-4)

b = > x = (+5,-5)

c=> x = (+8,-8)

d = > x = (+11,-11)

e = > x = (+3,-3)