product of pragati'sage 2years ago and 3yeears hence is 84.find her present age?
Answers
Answered by
1
Answer:
sorry I don't know
Step-by-step explanation:
sorry I don't know
Answered by
1
Answer:
9
Step-by-step explanation:
present age be x
her age 2 years ago is x-2
her age 3 years hence(after) x+3
product of pragathi ages is 84
(x-2)(x+3)=84
x²+x-6=84
x²+x-90=0
x²-9x+10x-90=0
x(x+10)-9(x+10)
(x-9)(x+10)
x is 9 or -10
age cant be negative
do answer us 9
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