3 years ago

Can someone solve this math problems I don't understand :(

1 answer:

7 0

You do 10 x 10 6 times and the same for 3 times and your get the answer
example

10^3 x 10^2
10x10x10 = 1,000
10x10 = 100
1,000 x 100 = 100,000

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Prove that (n+5)^2-(n+3)^2 is a multiple of 4 for all positive integer values of n

hodyreva [135]

Answer:

Proved

Step-by-step explanation:

Given

$(n+5)^2-(n+3)^2$

Required

Show that $(n+5)^2-(n+3)^2$ is a multiple of 4

Expand each bracket

$(n+5)(n+5)-(n+3)(n+3)$

Open brackets

$n^2 + 5x + 5x + 25 - (n^2 + 3x + 3x + 9)$

$n^2 + 10x + 25 - (n^2 + 6x + 9)$

Open bracket

$n^2 + 10x + 25 - n^2 - 6x - 9$

Collect Like Terms

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Factorize

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8 0

4 years ago

Can someone solve this math problems I don't understand :(​

Can someone solve this math problems I don't understand :(