Answer:
2 ( 4x² + 3xy - 2 )
Step-by-step explanation:
( 5x² + 4xy - 7 ) + ( 3x² + 2xy + 3 )
5x² + 4xy - 7 + 3x² + 2xy + 3
Combine like terms.
5x² + 3x² + 4xy + 2xy - 7 + 3
8x² + 6xy - 4
Factorize the answer.
2 ( 4x² + 3xy - 2 )
Answer:
120960
Step-by-step explanation:
We get 11 books 7 of geography and 4 of chemistry
We need to line all of them with 2 constraints
1.-three of the geography must be: 1 in the middle and in each end, then we already have
C₄,₃ = 4! / ( 4 - 3 ) ! C₄,₃ = 4*3*2*1
C₄,₃ = 24 different ways
Now we have 7 books of chemistry. To place them we get
P₇ = 7! P₇ = 7*6*5*4*3*2*1 P₇ = 5040
Now the total number will be
C₄,₃* P₇ = 120960
Given: y=x^3 and y=343
So, 343=x^3
Cube root both sides which will get rid of the cube on the right side of the equation
You are left with the cube root of 343. Which equals 7.
7*7*7=343
X=7
Hey You!
255 / 4 = 63.75
Each side would be 63.75 square ft.
So the Pythagorean triplet is 8,15and 17
