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speedyblackmann
21.04.2020 •
Mathematics
Factorise 49x^2-121 what’s the answer
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Ответ:
( 7x + 11 )( 7x- 11 )
Step-by-step explanation:
( 7x + 11 )( 7x- 11 )
Because 7*7 is 49
-11*11= -121
7*11=77
-7*11= -77
77-77=0
so the answer is 49x^2-121
Ответ:
25.92
Step-by-step explanation: