pls solve 3rd and 4th questions
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x+1/x=26/5
x^2+1=26x/5
5x^2+5=26x
5x^2-26x+5=0
(x-25)(x-1)=0
x=25 or x=1
this is the Ans to 3rd question
1/2×base×height=area of triangle
1/2×x×(x+4)=48
x^2+4x-96=0
(x+12)(x-8)=0
so x=8 as x cannot be negative.
so height is 8cm. and base is 12cm
x^2+1=26x/5
5x^2+5=26x
5x^2-26x+5=0
(x-25)(x-1)=0
x=25 or x=1
this is the Ans to 3rd question
1/2×base×height=area of triangle
1/2×x×(x+4)=48
x^2+4x-96=0
(x+12)(x-8)=0
so x=8 as x cannot be negative.
so height is 8cm. and base is 12cm
Dhvani25:
Sorry. 5x²+5=26x
per x square me kese hua
x is in the denominator and i just took the lcm in the lhs
it should be 5x +5 =26
yes sorry
i have edited it
sorry was in a hurry
ok
ok
thanks
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