DragonLovely
17.02.2022 •
Mathematics
Find the area of the rectangle by multiplying its length and width.
A.
(21x2 + 2) square units
B.
(21x2 − 17x + 2) square units
C.
(21x2 − 11x + 2) square units
D.
(21x2 + 11x + 2) square units
Solved
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Ответ:
B) 21x² - 17x + 2
Step-by-step explanation:
Area of a rectangle = width x length
Given:
width = 3x - 2length = 7x - 1Therefore, area = (3x - 2)(7x - 1) = 21x² - 17x + 2
Ответ:
5(x+1)
Step-by-step explanation:
Let the number be x
Sum of number and 1 is x+1
5 times the sum is 5(x+1)