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Ivan
2 years ago
15

Factor the following using the difference of squares method

Mathematics
1 answer:
Bond [772]2 years ago
6 0

Answer:

a)

{x}^{2}  - 16 \\  =  {x}^{2}  -  {4}^{2}  \\  = (x + 4)(x - 4)

b)

{9y}^{2}  - 25 \\ =   {(3y)}^{2}  -  {5}^{2}  \\  = (3y + 5)(3y - 5)

here is the answer hope that will help you

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Answer:

A box of oat cereal cost lees than a box of rice cereal cost per ounce.

Step-by-step explanation:

Given:

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First we will find cost of 1 oz of oat cereal.

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By Using Unitary method we get;

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By Using Unitary method we get;

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Now from above we can see that cost of 1 oz of oat cereal is $0.26 and cost of 1 oz of rice cereal is $0.3.

Hence we say that, A box of oat cereal cost lees than a box of rice cereal cost per ounce.

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