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IgorLugansk [536]
3 years ago
8

Simplify the expression (5x^2+13x-4)-(17x^2+7x-19)+(5x-7)(3x+1)

Mathematics
2 answers:
miv72 [106K]3 years ago
8 0
5x²+13x-4-17x²-7x+19+15x²+5x-21x-7=
=5x²+15x²-17x² +(13x-7x+5x-21x) -4-7+19=
=3x²-10x+8
nlexa [21]3 years ago
5 0
The simplified expression is = 3x^2-10x+8

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NikAS [45]

Answer:

Explanation:

The standard form of an equation is expressed as y = mx+b

m is the slope

Given the equation x - y = 6

Rewrite in standard form;

-y = -x + 6

Multiply through by -1

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y = x - 6

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Given

5 0
1 year ago
Answer:
emmainna [20.7K]

Let the numbers be n, n+2, n+4

Sum equals too= 13+2(n+4), which is 2n+21

a) Equation--> n+n+2+n+4= 2n+21

b) Solution--> 3n+6= 2n+21

                      => n= 15

c) Second number--> 17 (15+2)

   Third number--> 19 (15+4)

d) 15+15+2+15+4=30+21

   => 51= 51

So, the equation is true.

And pls mark me brainliesttt :)))

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2 years ago
Which of the following expression has the greatest value: -3+-4-(-2),-3-(-4)-(-2),-3+-4-2,-3-(-4)-2
AleksAgata [21]
The third one
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Solve for x 9(x-1) = 2
Katen [24]

Answer: x = 9/11

Step-by-step explanation:

First, distribute 9 to x and -1

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Then add 9 to both sides

9x = 11

Then divide both sides by 9

x = 9/11

Hope it helps :)

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The equation with one change and no solutions: 8x + 6 =
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The answer is 2 ........
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