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iren [92.7K]
3 years ago
14

Whats this answer ?

Mathematics
2 answers:
Elanso [62]3 years ago
6 0

Answer:

c = 36

Step-by-step explanation:

x^2 + 12x

Take the coefficient of x

12

divide by 2

12/2 =6

square it

6^2 = 36

Add this

c=36

Rus_ich [418]3 years ago
4 0

Answer:

c =36

Step-by-step explanation:

a perfect square (ax+b)² expanded will become ax² + 2ab + b²

since a is one (x² = 1*x²), 2b = 12, and b = 6

c = b²

c = 6²

c =36

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\rule{200}{4}

Additional info :-

<em>D</em><em>e</em><em>r</em><em>i</em><em>v</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>o</em><em>f</em><em> </em><em>c</em><em>o</em><em>s</em><em>²</em><em>x</em><em> </em><em>-</em><em> </em><em>s</em><em>i</em><em>n</em><em>²</em><em>x</em><em> </em><em>=</em><em> </em><em>c</em><em>o</em><em>s</em><em>2</em><em>x</em><em> </em><em>:</em><em>-</em>

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\rule{200}{4}

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