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Getting marks in roots???????????

Asked by 19th February 2009, 5:13 PM
Answered by Expert
Answer:

Let his marks in maths are x and in science are 30-x.

As per give equation:

(x+2)(30-x+3)=210

(x+2)(33-x)=210

-x2 +31x+66=210

x2 -31x+144=0

From here,the marks are  x=25.3 and x=5.7

 

 

 

 

Answered by Expert 20th February 2009, 1:16 AM
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