Answer:
(90-1) ×(90+1) =,. then solve it by using property (a2-b2) ... hope it will help you
.
Step-by-step explanation: (90-1)(90+1)
a+b × a-b = a^2 - b^2
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Answer:
(90-1) ×(90+1) =,. then solve it by using property (a2-b2) ... hope it will help you
.
Answer:
Step-by-step explanation: (90-1)(90+1)
a+b × a-b = a^2 - b^2