factories a^2 +6a - 91
Answers
Answered by
4
a²-13a+7a-91
a(a-13)+7(a-13)
(a-13)(a+7)
Answered by
2
Answer:
a²+6a-91=0
a²+13a-7a-91=0
a(a+13)-7(a+13)=0
(a-7)(a+13)=0
a=7 or -13
hope this will help you
sorry ...........
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