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Serjik [45]
3 years ago
8

.   Multiply (x + 3)(x – 3).

Mathematics
1 answer:
konstantin123 [22]3 years ago
8 0
X × x = x^2
x × -3 = -3x
3 × x = 3x
3 × -3 = -9

x^2 + 3x - 3x - 9
So I would agree with C because the -3x and the 3x cancel each other out. I hope this helps!
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Step-by-step explanation:

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On average, Jaimie can bike five times as fast as he can run. To travel 25 km, he needs 2 h more if he is running than if he is
monitta

Answer: Running speed is 10k/h

Biking speed is 50k/h

Step-by-step explanation:

My procedure may be unconventional, but it works:

Compute the time it takes, then translate to speed. 25k at biking speed takes 2 hours less than at running speed which is 1/5 bike speed.

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25(5x-2) = 25x  ==> 125x -50 =25x ==>  100x = 50  

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3 years ago
Can someone help me please!
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9514 1404 393

Answer:

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Step-by-step explanation:

Distributing the minus sign in the given expression results in ...

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