Answer:
2*34
Step-by-step explanation:
Since its x + 3 we use -3
-3| 2 1 -8 21 (these are the # without the x)
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-6 15 -21
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2 -5 7 0
Drag the 2 down, multiple it by -3 to get -6
1+(-6) = -5. -5 * -3 =15 . 15+(-8) = 7
7*-3 = -21. -21 +21 = 0
Since last # is 0 we have a factor.
factor is 2x^2 -5x -7 (we start with a power 1 less the original.)
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Answer:
x = -4
Step-by-step explanation:
8x = 8 + 2(x-10) + 3x
simplify
8x = 8 + 2x - 20 + 3x
simplify again
8x = 5x - 12
subtract 5x from both sides
3x = -12
divide both sides by 4
x = -4
Quotient, implies division, so the quotient of 18 and 2 is 6:
18/2=6
Sum implies addition, so the sum of 22 and 9 is 31:
22+9=31
Now we can subtract the quotient of 18 and 2, '6', from the sum of 22 and 9, '31'.
31-6=25
Answer=25
Answer:
Step-by-step explanation:
we have a square and a triangle
we want to figure out the area and the perimeter of the pentagon
to figure out the area of the pentagon we can use the given formula:
let's figure out 
:
since the given shape is a square Every angle of its 90° Thus the triangle is a right angle triangle
therefore the height is 4
substitute h and b
reduce fraction:
simplify multiplication:
likewise square
substitute s:
simplify square
hence,
to figure out perimeter
let's figure out hypotenuse first
therefore,
