Math, asked by yana85, 1 year ago

help me in this question I'll mark you as a brainliest...

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Answers

Answered by wbhat
1
let the present age of zeeba is x
when she was younger her age was = x - 5
also , according to question
x²= 11 + 5 x
it's a quadratic equation
it can be written in standard form as
x²-5x -11=0
use quadratic formula and get the ans
Answered by Anshu001
4

Answer:

Let present age of Zeba be ' x '

Then ,

5 years before her age would be : x - 5

According to the question ,

(x-5)^2 = 5x + 11

Step-by-step explanation:

now , solving further.....

x^{2}  + 25 - 10x = 11 + 5x

x^{2} - 15x + 14 = 0\\x^{2} -14x -x  +14 =0\\x(x-14) -1 (x-14) = 0\\(x-1)(x-14)=0

therefore , x = 1 or 14

But x = 1 is rejected since 5 years ago her age would be negative which is not possible.

So, Zeba 's present age is 14

I HOPE IT HELPS.....

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