Answer:
x^2 + 8x + 15
Step-by-step explanation:
( x + 3 ) ( x + 5 )
1. distribute
( x + 3 ) ( x + 5 )
x^2 + 3x + 5x + 15
2. simplify
x^2 + 8x + 15
Answer
14 / 13 hope this helps
Step-by-step explanation:
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Answer:
A. 6x + 4
B. 22 cm
Step-by-step explanation:
The perimeter of the triangle is equal to the sum of all the side lengths, which is (2x+3) + (x+1) + (3x), or 6x + 4.
When x = 3cm, the perimeter is 6(3) + 4, which is 22 cm.