if x=1 and y=2then a²x+ay=3 find value of a
Answers
Answered by
1
Step-by-step explanation:
a² (1) + a(2) = 3
a² + 2a = 3
a² + 2a - 3 =0
Factorization
a² + 3a - 1a -3 =0
a(a+3) - (a+3) =0
(a-1) (a+3) = 0
a-1 =0 a+3 =0
a=1 or a= -3
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Answered by
1
Answer:
a=1,a=-3
Step-by-step explanation:
If x=1,y=2
thena^2x+ay-3=0
a^2+2a-3=0 (substituting x and y)
a^2-a+3a-3=0 (middle term splitting)
a(a-1)+3(a-1)=0
(a-1)(a+3)=0
Now, a=-3,a=1
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