Product of pragati’s age 2 years ago and 3 years hence is 84. find her
present age.?
Answers
Answered by
1
Hope this helps......
Attachments:
Answered by
0
Answer:
let's x be her present age,
Her age , two years hence will be (x-2)
Her age , three years hence will be (x+3)
According to the question
(x - 2 ) × (x + 3) = 84
x(x+3)-2(x+3)
x²+3x-2x-6=84
x²+x-6-84=0
x²+x-90=0
x²+10x-9x-90=0
x(x+10)-9(x+10)=0
(x+10) or (x-9)
x+10=0 or x-9=0
x=-10 or x=9
Similar questions