a square - 81 factorise solution
Answers
Answered by
24
Hey !!
a² - 81
(a)² - (9)²
We know that,
( x )² - (y )² = ( x + y ) ( x - y ).
So,
(a)² - (9)²
( a + 9 ) ( a - 9 )
a² - 81
(a)² - (9)²
We know that,
( x )² - (y )² = ( x + y ) ( x - y ).
So,
(a)² - (9)²
( a + 9 ) ( a - 9 )
BrainlyQueen01:
:)
nice
sorry your answer is wrong
its right
sorry your answer is wrong
yes its right
Answered by
6
(a²-81) = a²-9²
=(a-9)*(a+9)
welcome
why you say welcome
not to you...
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