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Reptile [31]
3 years ago
12

What value of c makes x2 − 12x + c a perfect square trinomial?

Mathematics
2 answers:
miv72 [106K]3 years ago
6 0

Answer:  The required value of c is 36.

Step-by-step explanation:  We are given to find the value of c so that the following expression becomes a perfect square trinomial :

E=x^2-12x+c~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To find the value of c, we proceed as follows :

E\\\\=x^2-12x+c\\\\=(x^2-2\times x\times6+6^2)+c-6^2\\\\=(x-6)^2+c-36.

So, for E to be a perfect square trinomial, we must have

c-36=0\\\\\Righatrrow c=36.

Thus, the required value of c is 36.

Nastasia [14]3 years ago
4 0

Answer:

for value 36

c makes the perfect square

x2 - 12x +36

= x2 - 2*6x +6^2

= (x-6)^2 #

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