Mathematics, 29.01.2020 05:59 Isabella1319

The only solution of the equation x2 + bx + 16 = 0 is x = 4. what is the value of b?

b = –16
b = –8
b = 8
b = 16

Answers: 1

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Answer from: ghst

To factor out x2 + bx + 16, the easiest way is to find out 2 different values that will add up to b but when multiplied is positive 16. Given that the only solution to this equation above is x = 4. the factored out form should be (x - 4)^2 or (x-4)(x-4). As b should be the addition of these two x values, b should be -8. The correct option is the second option, b = -8.

Answer from: plzzhelp7931

Answer from: gomek

I believe the answer is b=-8

Step-by-step explanation:

To factor out x2 + bx + 16, the easiest way is to find out 2 different values that will add up to b but when multiplied is positive 16.

Given that the only solution to this equation above is x = 4. the factored out form should be (x - 4)^2 or (x-4)(x-4).

As b should be the addition of these two x values, b should be -8.

Answer from: svarner2001

I believe the answer is b=-8

Step-by-step explanation:

To factor out x2 + bx + 16, the easiest way is to find out 2 different values that will add up to b but when multiplied is positive 16.

Given that the only solution to this equation above is x = 4. the factored out form should be (x - 4)^2 or (x-4)(x-4).

As b should be the addition of these two x values, b should be -8.

Answer from: Quest

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

Which carrier has a lower rate ? a)carrier a b)carrier b c) carrier a and b have both the same unit

Answer from: Quest

step-by-step explanation:

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The only solution of the equation x2 + bx + 16 = 0 is x = 4. what is the value of b?

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