4x^2+y^2+9z^2+4x-6yz-12zx
factorize the following expression.
Answers
Answered by
4
Step-by-step explanation:
15 horses
Step-by-step explanation:
let the no. of horses is n and cost of each horse is x
so n*x= 3000 --------1
as three horses died and rest are sell 65 rs more than cost price. so
(n-3)(x+65)= 3000*\frac{106}{100}\\\\nx+65n-195-3x=3180\\\\3000-195+65n-3x=3180\\\\65n-3x=375\\\\65n-3*\frac{3000}{n}=375\\\\65n^{2}-375n-9000=0\\\\13n^{2}-75n-1800=0
by solving this we get n=15
so there were total 15 horses he bought.
Answered by
1
Answer:
please make as thanks
Step-by-step explanation:
please make as thanks for the p
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