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3 years ago

Help with 14, 15, and 16 please ?

Mathematics

1 answer:

lara31 [8.8K]3 years ago

4 0

14. 36x^2 - 16
4(9x^2 - 4) =
4(3x + 2)(3x - 2) <==

15. 3x^2 + 10x - 8
(3x - 2)(x + 4) <==

16. 5x^2 - 16x + 15 = 4x - 5
5x^2 - 16x - 4x + 15 + 5 = 0
5x^2 - 20x + 20 = 0
5(x^2 - 4x + 4)
5(x - 2)(x - 2)
x - 2 = 0....x = 2

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3 years ago

100 pounds of chocolate is packaged into boxes each containing 1^1/4 pounds of chocolate. Each box is then sold for $1.75. What

sertanlavr [38]

Answer:

$140

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2 years ago

Read 2 more answers

A bag has green and purple marbles. Two-fifths of the marbles are green, and the rest are purple.

Musya8 [376]

The number of purple marbles in the bag are; 201 purple marbles

<h3>How to work out fraction of bar model?</h3>

We are told that Two-fifths of the marbles are green, and the rest are purple.

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Read more about Bar Model at; brainly.com/question/2521312

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2 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago