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2 years ago

What is the answer (4×-12)+(-x+7)

Mathematics

2 answers:

Bogdan [553]2 years ago

7 0

Answer:

x-41

Step-by-step explanation:

use the foil method

Ivanshal [37]2 years ago

4 0

Answer:

8/(x+3) = [8*(x+1)] / [(x+3)(x+1)] = (8x+8) / [(x+3)(x+1)]

5/(x+1) = [5*(x+3)] / [(x+3)(x+1)] = (5x+15) / [(x+3)(x+1)]

(8x+8 - (5x+15)) / [(x+3)(x+1)] =

= (3x-7) / [(x+3)(x+1)]

Step-by-step explanation:

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Select all expressions that can be subtracted from 9x to result in the expression 3x+5.

Arte-miy333 [17]

<h2>Answer:</h2><h2>The expressions that can be subtracted from 9x to result in the expression 3x+5 is 6x - 5</h2>

Step-by-step explanation:

To find the expression that can be subtracted from 9x to result in the expression 3x+5.

Let us consider the expression, a - b = c

Here a = 9x

the result, c = 3x + 5

b = ?

Substitute the values in the above equation, we get

9x - b = 3x + 5

9x - (3x + 5) = b

b = 6x - 5

5 0

2 years ago

Need help?????????!!!!!!!!!!!!!

Vera_Pavlovna [14]

Answer:

29=b

30=a

Step-by-step explanation:

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2 years ago

Andy completes the square for the equation x2 + 6x - 8 = 0. Which of the following equations reveals the vertex of the parabola?

Stolb23 [73]

If the equation $x^2+6x-8$ has undergo completing the square, the answer would be:
$x^2+6x-8
$
$x^2+6x+9-8-9$
**In this example, since 6x is the middle term, what comes to my mind is the polynomial (x+3) because 2ab results into 6x. [from the special products lesson $(a+b)^2=a^2+2ab+b^2$ ]
$(x+3)^2 -17 = 0$
So if the equation is equal to y, then this equation's
$y+17=(x+3)^2$
The vertex would be on the point (-3, -17)

3 0

2 years ago

Read 2 more answers

Let f(x) = 2x – 1 and g(x) = 3x<br> Find g(f(x))

Gemiola [76]

6x-3

You have to put f(x) into g(x) to find the answer, so you rewrite it like this: 3(2x-1)

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2 years ago

Alan drives 20.4 miles in 17 minutes.He passes a sign which gives the speed limit as 60mph.By how much in mph did Alan exceed th

Rzqust [24]

12 miles over the speed limit

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1 year ago