3 years ago

Does anyone know the answer??

Mathematics

2 answers:

sashaice [31]3 years ago

6 0

Answer:

5 minutes

Step-by-step explanation:

150-50=100

100/20=5

nydimaria [60]3 years ago

4 0

Ghhikdjdjndkkdkdmddjs hdduuusuid dhshsjjss d

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Answer:

The given expression is simplified as $(x + 9)(x -9) = x^{2} - 81$

Step-by-step explanation:

Here,the given expression is (x+9)(x -9)

Using the ALGEBRAIC IDENTITY:

$(a +b)(a -b) = a^2 - b^2$

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Comparing it the left side of the identity,

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Substituting the value of a and b, we get

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