Answer:
2x4 - 50
STEP
2
:
STEP
3
:
Pulling out like terms
3.1 Pull out like factors :
2x4 - 50 = 2 • (x4 - 25)
Trying to factor as a Difference of Squares:
3.2 Factoring: x4 - 25
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 : 25 is the square of 5
Check : x4 is the square of x2
Factorization is : (x2 + 5) • (x2 - 5)
Answer: Answer
Step-by-step explanation: type 3f3FcEi in bitly
delete the space for it to work
<h2><em>He made an error in Step 3. He should have subtracted 2 from both sides or C</em></h2><h2><em></em></h2><h2><em>HOPE IT HELPS (◕‿◕✿)</em></h2>
Answer:
14 in²; D.
Step-by-step explanation:
Hey!
To find the area of a trapezoid, we will add up both of the bases, divide by two, and then multiply the height.
In that case, we'll start by adding up 5 and 9.
5 + 9 = 14
.
7 × 2 (height) = 14.
Thus, the area of the given trapezoid is , or D.
Hope this helps!