amaraea
03.08.2019 •
Mathematics
The area of a rectangular knitted blanket is 14x^2−17x−6. what are the possible dimensions of the blanket? use factoring.
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Ответ:
**CORRECT ANSWER**
2x-3, 7x+2
Step-by-step explanation:
Ответ:
14 x^2 - 17 x - 6 = 0
The left hand side factors into a product with two terms:
(2 x - 3) (7 x + 2) = 0
Split into two equations:
2 x - 3 = 0 or 7 x + 2 = 0
Add 3 to both sides:
2 x = 3 or 7 x + 2 = 0
Divide both sides by 2:
x = 3/2 or 7 x + 2 = 0
Subtract 2 from both sides:
x = 3/2 or 7 x = -2
Divide both sides by 7:
x = 3/2 or x = -2/7
Ответ:
see examples before for the method to solving literal equations for a given variable: solve a = bh for b. since h is multiplied times b, you must divide both sides by h in order to isolate b. since (c+d) is divided by 2, you must first multiply both sides of the equation by 2.
step-by-step explanation: