Answer (2x + 7) • (x2 - 2)
Step-by-step explanation:
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Step by step solution :
Step 1 :
Trying to factor as a Difference of Squares :
1.1 Factoring: x2-2
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 2 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares.
Final result :
(2x + 7) • (x2 - 2)
Answer:
53.9 Kilograms of sugar in 7 hours
Step-by-step explanation:
7*7.7=53.9
Answer:
The length of the other side is 7.65m
Step-by-step explanation:
Maria's mistake was that she wanted to move the decimal point 2 places to the left, when she should have moved it 1 place, since that is the number of zeros that the number 10 has.
To find the length of the rectangle, we simply divide the area by the width
a = area = 76.5 m
w = width = 10m
l = length
l = a/w
l = 76.5m² / 10m
l = 7.65m
The length of the other side is 7.65m
Answer:
The equation is 8 x 13 = 104
