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Rus_ich [418]
3 years ago
12

Pls i need it like now

Mathematics
1 answer:
schepotkina [342]3 years ago
7 0
You need to put the x or y value in the other equation ;
For example excersize a
It given that
Y=x^2+3x-1
Then you put it on the first equation :
x+x^2+3x-1=4
And then you solve it
x+x^2+3x-1-4=0
4x+x^2-5=0
We will make the order to seem easier
x^2+4x-5=0
x1=-5
x2=1
Then you put the x1,2 that you found on the second equation :
y=(-5)^2+3*(-5)-1=9
y=1^2+3*1-1=3
For summary :
x1=-5
x2=1
y1=9
y2=3

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Write the equation of the line that has a slope of 3 and passes through (5, 11)
Marina CMI [18]

Answer:

3x-4

Step-by-step explanation:

y=ax+b general type of the line

a is the slope

y=3x+b

put 5 instead of the x and put 11 instead of the y

11=15+b

b=(-4)

Equation is 3x-4

4 0
2 years ago
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3 0
3 years ago
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Multiply the trinomial x^2+xy+y^2 times the binomial x-y and simplify.
Natalija [7]
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x^3+x^2y+xy^2-x^2y-xy^2-y^3

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6 0
3 years ago
5.) Simplify the following polynomial. -6x3+5x-3-(2x3+4x2-3x+1)
Vera_Pavlovna [14]

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Step-by-step explanation:

3 0
3 years ago
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Oduvanchick [21]
The function in this problem should be: <span>f(x) =x</span>² <span>+ 12x + 6 

y = x</span>² + 12x + 6
y - 6 = x² + 12x 

x² ⇒ x * x
12x ⇒ 2*6*x
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y - 6 + 36 = x² + 12x + 36

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y + 30 = x² + 12x + 36
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Choice is D. 36,-36
5 0
3 years ago
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