Answer:
Step-by-step explanation:
Question 1
System of equations is,
y = -6x -------(1)
y = -4x - 2 ---------(2)
Substitute the value of y from equation (1) to equation (2)
-6x = -4x - 2
-6x + 4x = -2
-2x = -2
x = 1
From equation (1)
y = -6(1)
y = -6
Question (2)
System of equations is,
-y = x --------(1)
3x + 5y = 20 ---------(2)
Substitute the value of x from equation (1) to equation (2)
3(-y) + 5y = 20
-3y + 5y = 20
2y = 20
y = 10
From equation (1)
-y = x
x = -10
Question (3)
System of the equations is,
y = -2x - 7 --------(1)
9x - 10y = 12 ----------(2)
Substitute the value of y from equation (1) to equation (2)
9x - 10(-2x - 7) = 12
9x + 20x + 70 = 12
29x = 12 - 70
29x = -58
x = -2
From equation (1)
y = -2(-2) - 7
y = 4 - 7
y = -3
Question is Incomplete; Complete question is given below;
What is the completely factored form of 3x5 – 7x4 + 6x2 – 14x.
Answer:
The Complete factorized form of given equation is .
Step-by-step explanation:
Given:
We need to factorize the above equation:
Solution:
On Solving the above equation we get;
Step 1:
First we will take a common factor which is 'x' so the equation will become as;
Step 2:
Now we will Rewrite the above equation so as to factorize the same we get;
Step 3:
Now we take common factor from first 2 terms we get;
Step 4:
Now we will take 7 as common factor from last 2 terms we get;
Step 5:
Now we can see the common factor between the 2 terms is ;
Hence The Complete factorized form of given equation is .
Answer:
We need more information
Step-by-step explanation:
The factor of <span>15xy − 45x − 6y + 18 is 3(y-3)(5x-2).</span>
The answers are 24 and -2