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What value of c makes the polynomial below a perfect square?

What Value Of C Makes The Polynomial Below A Perfect Square class=

Sagot :

Answer:

B

Step-by-step explanation:

x² + 9x

to complete the square

add ( half the coefficient of the x- term )² to x² + 9x

= x² + 2([tex]\frac{9}{2}[/tex] )x + ([tex]\frac{9}{2}[/tex] )²

= x² + 9x + [tex]\frac{81}{4}[/tex] ← the value of c

= (x + [tex]\frac{9}{2}[/tex] )² ← a perfect square

Sarahtackie58idn
81/4
Because I found the answer by using a Calculator I found online
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