Answer :
Answer:
a=10,-10
Step-by-step explanation:
a² - 100 = 0
(a)²- (10)² = 0
(a+10) (a-10) =0
either or
a+10=0 a-10=0
a= -10 a=10
Answer:
a=10,-10
Step-by-step explanation:
a² - 100 = 0
(a)²- (10)² = 0
(a+10) (a-10) =0
either or
a+10=0 a-10=0
a= -10 a=10