133=x + (x+5) + (x+14)
133 = 3x+19
3x=114
x= 114/3 =38
5+38 =43
38+14 =52
check: 38 +43 +52 = 133
3 sides are : 38, 43 & 52
(x + 8)(x - 5)
= x (x - 5) + 8(x - 5)
= x² - 5x + 8x - 40
= <u>x²</u><u> </u><u>+</u><u> </u><u>3</u><u>x</u><u> </u><u>-</u><u> </u><u>4</u><u>0</u><u> </u><u>(</u><u>a)</u>
Answer:
2x² +2x - 12
Step-by-step explanation:
area of rectangle = length X width
length = x+3
width = 2x - 4
Area = (x+3)(2x-4)
= x(2x-4) +3(2x-4)
= 2x² - 4x + 6x - 12
= 2x² +2x - 12
The sales price is 44. 37 dollars.
Step-by-step explanation:
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