Question

Find the real or imaginary solutions of each equation by factoring #10, #22

Answer 1

22)  
(x^2-16)(x^2+4)=0

can you finish?
solve for x (plus and minus because two solution and degreee 4 so total 4 answers  )
x=+-4          x=+-2

hope this helps.

for 10 I know a way but it might confuse you