2 years ago

Which of the following values "completes square", or creates a perfect square trinomial ,for x^2 -8x + __

1 answer:

4 0

16. (b/2)^2. So (-8/2)^2=16

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kotykmax [81]

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emmainna [20.7K]

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zubka84 [21]

Answer:

$x = -4~ \text{and}~ x = -1$

Step-by-step explanation:

$~~~~~~~x^2 +5x +4 =0\\\\\implies x^2 +4x +x +4 = 0\\\\\implies x(x+4) +(x+4) = 0\\\\\implies (x+4)(x+1) = 0\\\\\implies x = -4,~~ x = -1$

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1 year ago

NNADVOKAT [17]

Answer:

$132

Step-by-step explanation:

40% off means it is actually 60% of the regular price.

Thus, you will multiply the original (220) by .6 (this means 60 percent)

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3 years ago

Rom4ik [11]

this is a learning help website? tell me if i am wrong

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2 years ago