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vlabodo [156]
3 years ago
7

What are the possible values for b, if x2 + bx – 9 is factorable?

Mathematics
1 answer:
Elanso [62]3 years ago
8 0

Answer:

Simplifying

x2 + bx + 9 = 0

Reorder the terms:

9 + bx + x2 = 0

Solving

9 + bx + x2 = 0

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-9' to each side of the equation.

9 + bx + -9 + x2 = 0 + -9

Reorder the terms:

9 + -9 + bx + x2 = 0 + -9

Combine like terms: 9 + -9 = 0

0 + bx + x2 = 0 + -9

bx + x2 = 0 + -9

Combine like terms: 0 + -9 = -9

bx + x2 = -9

Add '-1x2' to each side of the equation.

bx + x2 + -1x2 = -9 + -1x2

Combine like terms: x2 + -1x2 = 0

bx + 0 = -9 + -1x2

bx = -9 + -1x2

Divide each side by 'x'.

b = -9x-1 + -1x

Simplifying

b = -9x-1 + -1x

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Hope this helped!

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Step-by-step explanation:

5 0
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A student sees a newspaper ad for an apartment that has 1330 square feet (ft2 ) of floor space. how many square meters of area a
kkurt [141]

We know 1 meter = 3.28084 feet

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Now to convert from square feet to square meters, we need to divide by 3.28084 × 3.28084.

The area given in the news paper advertisement is 1330 square feet.

So to convert to square meters we divide by 3.28084 × 3.28084

We get

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3 0
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elixir [45]
I think it's -2 to -1 is the right answer maybe

but i hope it helps u !!
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