Question

12) What must be subtracted from 3x2 - 4y2 to get 1?
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Answer 1

Answer:

Step-by-step explanation:

x  

2

+7y  

2

−10

(3x  

2

+4y  

2

−5)−a=(2x  

2

−3y  

2

+5)

∴ a=3x  

2

+4y  

2

−5−(2x  

2

−3y  

2

+5)  

∴ a=3x  

2

+4y  

2

−5−2x  

2

+3y  

2

−5

∴ a=x  

2

+7y  

2

−10