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3 years ago

F.O.I.L

2 answers:

8 0

If you are talking about what is in between the two sets of parentheses then the answer would be multiplication hope that helped

baherus [9]3 years ago

4 0

The answer is x^2 -7x +12

so (x-4)(x-3) multiply each one

x*x is x^2 x*-3 is -3x

-4*x is -4x and -4*-3 is 12

combine like terms is -4x+-3x is -12x

put it all together now.

x^2 - 7x + 12

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50 POINTS REWARD!! <br> please answer all of the following questions correctly:

Pani-rosa [81]

$\frac{3x-2}{x^{2}-2x-3} -\frac{1}{x-3}$

factorising the first denominator

x²-2x-3 = x² -3x+x-3 = (x+1)(x-3)

(a) $\frac{3x-2}{(x+1)(x-3)} - \frac{1}{x-3}$

finding LCD

(b) LCD of (x-3)(x+1) and (x-3) is (x-3)(x+1)

(c)

$\frac{3x-2}{(x-3)(x+1)} -\frac{x+1}{(x-3)(x+1)}$

(d)

$\frac{3x-2-(x+1)}{(x-3)(x+1)}$

$\frac{3x-2-x-1}{(x-3)(x+1)}$

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5 0

3 years ago

Read 2 more answers

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devlian [24]

Answer:

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4 0

3 years ago

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X minus 2 is equal to 7

Lerok [7]

X = 9

Add both values 7 + 2 = 9, which is x.

9 - 2 = 7.

4 0

2 years ago

Explain how to model the problem with algebra tiles and

gregori [183]

Answer:someone answer the question already

Step-by-step explanation:

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3 years ago

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A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. the length of the deck

anzhelika [568]

Alright, lets get started.

Suppose the original deck size: width = x feet

the width is one-fourth the length given in question means length = 4 x feet

Means the originally area = $x * 4 x = 4 x^{2}$

Now the dimensions are changed.

New dimensions, width = (x + 6)

new length = (4x+10)

So, new area will be = $(x+6) * (4x+10) = 4x^{2} + 10 x + 24 x + 60 = 4x^{2} + 34 x + 60$

the area of the new rectangular deck is 128 ft2 larger than the area of the original deck, means

$4x^{2} + 128= 4x^{2} + 34 x + 60$

Subtracting $4x^{2}$ from both sides

$128 = 34 x + 60$

Subtracting 60 from both sides

$128 - 60 = 34 x + 60 - 60$

$68 = 34 x$

Dividing 34 in both sides

$\frac{68}{34} = \frac{34 x }{34}$

$x = 2$

Means width = 2 feet

Length would be = 4 time width = 4 * 2 = 8 feet

Means dimension of original deck would be = 2 feet and 8 feet :Answer

Hope it will help :)

8 0

3 years ago