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Bingel [31]
4 years ago
9

Simplify the product (x-4)(x+3)

Mathematics
2 answers:
Kamila [148]4 years ago
7 0

Answer:

Final answer is x^2-x-12.

Step-by-step explanation:

Given expression is \left(x-4\right)\left(x+3\right).

Now we need to find the product of the given expression \left(x-4\right)\left(x+3\right).

\left(x-4\right)\left(x+3\right)

=x\left(x-4\right)+3\left(x-4\right)

=x^2-4x+3x-12

combine like terms

=x^2-1x-12

=x^2-x-12

Hence final answer is x^2-x-12.

Flura [38]4 years ago
3 0

ANSWER

(x-4)(x+3) =  {x}^{2}   - x - 12

EXPLANATION

The given product is (x-4)(x+3)

We expand using the distributive property to obtain:

(x-4)(x+3) = x(x + 3) - 4(x + 3)

Expand the parenthesis to obtain:

(x-4)(x+3) =  {x}^{2}  + 3x- 4x  - 12

Combine the similar terms to get:

(x-4)(x+3) =  {x}^{2}   - x - 12

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What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
Zepler [3.9K]

First let’s put 5x+2y = 12 into slope-intercept form.

2y = -5x + 12

y = (-5/2)x + 6

So any line that is parallel to y = (-5/2)x + 6 must have a slope of -5/2.

Our answer then is y = (-5/2)x + c

Now all that remains is to find out the value of c.

We know this line passes through the point (-2,4). Which means when x = -2, y = 4.

4 = (-5/2)(-2) + c

4 = 5+c

c = -1

Hence the line you want is y = (-5/2)x - 1

Since the question gave the line in standard form and didn’t ask for any particular form, let’s give the answer in the same form that the question asked.

2y = -5x - 2

5x + 2y = -2

4 0
3 years ago
Describe and correct the error a student made finding the intercepts of the graph of the line 4x-6y=12
Bingel [31]

Answer:the error is when 6y=12

Step-by-step explanation:

the original problem says 4x-6y=12

so when you get rid of the 4x, it should still be -6y not positive

6 0
3 years ago
Lines c and d are parallel. Parallel lines c and d are cut by transversals s and t. Clockwise from top left, the angles formed b
lys-0071 [83]

Answer:

Options (1), (2) and (5) are true.

Step-by-step explanation:

Option (1). m∠1 = (2x + 10)°

lines c and d are the parallel lines and t is a transverse.

Therefore, m∠1 = (2x + 10)° [corresponding angles]

This option is true.

Option (2). m∠3 = 87°

Since ∠3 and angle having measure equal to 87° are the vertical angles therefore, both the angles will be equal in measure.

This option is true.

Option (3). m∠2 = (2x + 10 + 5x - 1)°

m∠2 = (5x - 1)° [Since both the angles are interior alternate angles]

Therefore, this option is not true.  

Option (4). m∠1 + m∠2 = m∠3

(5x - 1) + (2x + 10) + 87 = 180° [Sum of liner angles at a point is 180°]

7x + 96 = 180

7x = 180 - 96

x = \frac{84}{7}

x = 12

Therefore, m∠1 = (2x + 10) = 34°

                 m∠2 = (5x - 1) = 59°

                 m∠3 = 87°

For the given relation,

m∠1 + m∠2 = m∠3

34 + 59 = 87

93 = 87

Not true.

Therefore, this option is not correct.

Option (5). 87 + 2x + 10 + 5x - 1 = 180°

True.

Since these angles are the linear angles so the sum of all angles = 180°

Therefore, the given option is correct.

Options (1), (2) and (5) are the true.

4 0
3 years ago
50g^2 - 8 (factoring special cases)
natka813 [3]
Answer: 2(5g + 2)(5g-2)
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Mary currently makes $43,200 for her annual salary and gets a 3.4% annual raise. Write a general equation for this situation. Ho
worty [1.4K]

Answer:

50'000

Step-by-step explanation:

I used my mind hope I'm right

6 0
3 years ago
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