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zhenek [66]
4 years ago
14

Factorize: 9(2a – b)^2 – 4(2a – b)

Mathematics
1 answer:
Marina CMI [18]4 years ago
8 0

Answer:

(2 a - b) (18 a - 9 b - 4)

Step-by-step explanation:

Factor the following:

9 (2 a - b)^2 - 4 (2 a - b)

Factor 2 a - b out of 9 (2 a - b)^2 - 4 (2 a - b):

(2 a - b) (9 (2 a - b) - 4)

9 (2 a - b) = 18 a - 9 b:

Answer: (2 a - b) (18 a - 9 b - 4)

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Step-by-step explanation:

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3 years ago
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A triangle has side lengths of (8.3f+9.6g)(8.3f+9.6g) centimeters, (3.6f+1.5h)(3.6f+1.5h) centimeters, and (6.7h-2.9g)(6.7h−2.9g
nekit [7.7K]

Answer:

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

Step-by-step explanation:

Perimeter of a triangle = side a + side b + side c

Side a = (8.3f + 9.6g)

Side b = (3.6f + 1.5h)

Side c = (6.7h - 2.9g)

Perimeter of a triangle = side a + side b + side c

= (8.3f + 9.6g) + (3.6f + 1.5h) + (6.7h - 2.9g)

= 8.3f + 9.6g + 3.6f + 1.5h + 6.7h - 2.9g

Collect like terms

= 8.3f + 3.6f + 9.6g - 2.9g + 1.5h + 6.7h

= 11.9f + 6.7g + 8.2h

Perimeter of a triangle = (11.9f + 6.7g + 8.2h) cm

The expression (11.9f + 6.7g + 8.2h) cm represent the perimeter of the triangle

7 0
3 years ago
If the domain of the square root function f(x) is x less-than-or-equal-to 7, which statement must be true?
Damm [24]

Answer:

The x-term inside the radical has a negative coefficient.

Step-by-step explanation:

hope this helps

3 0
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Answer:

24 ft

Step-by-step explanation:

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24 = b

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How do I turn 25/8 into a mixed number
vovikov84 [41]
You can turn 25/8 into a mixed number by dividing it. It would = 3 
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4 years ago
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