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evaluate : (2a + 3b + 4c) power 2 + (2a – 3b + 4c) power 2 + (2a + 3b – 4c) power 2​

By Evelyn

evaluate : (2a + 3b + 4c) power 2 + (2a – 3b + 4c) power 2 + (2a + 3b – 4c) power 2​

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Evelyn

Solve the following by graphical method
X+y=1 ; 2x+3y=0​

In which quadrant does it lie and find whether it lies on x-axis or y-axis. (i) ( +6,-5)
(ii) (-7,-8) (iii) (0,12) (iv) ( -1,

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