Find the roots of a2 + 2a-99 = 0.
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Answered by
4
Answer:
It is very simple . We use factorization to solve ..
in second step.in this step we take multiple of 99
a^2+11a-9a-99=0
a(a+11)-9(a+11)=0. we take common.
(a-9)(a-11)=0
a=9. a=-11. so (9,-11) are it's roots
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Answered by
3
Answer:
9 and -11 are the roots of the given equation.
Step-by-step explanation:
=>(a+11) (a-9)=0
here, (a+11)=0 or (a-9)=0
=>a=-11 or a=9
Hence, 9 and -11 are the roots of the given equation.
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