Question

find 4cd ( c2 + d2) if c+d =11 , c-d =1

Answer 1

Heya!!

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c+d = 11
c-d = 1

Add both eq

=) c+d + c-d = 11+1

=) 2c = 12

=) c= 12/2 = 6

Hence d = 11-6
= 5.

= 4cd(c^2 + d^2)

= 4*6*5 ( 5^2 + 6^2)

= 120(25+36)

= 120* 61

= 7320

Hope it helps uh :)

Answer 2

Answer:

Heya!!

Given :-

• c+d =11
• c-d =1

( FROM C+D=11 & C-D=1)

• c = 6.
• d=5

To Find :-

• 4cd ( c2 + d2)

Solution :-

= 4×6×5(6^2+5^2)

= 120×61

= 7320

Hence the the answer is 7320