3 years ago

PLEASE HELPPP pleaseee

Mathematics

1 answer:

erastovalidia [21]3 years ago

8 0

Ok so do you know how to do it?

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dangina [55]

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3 years ago

The sum of two numbers is 51 and the greater number is twice the smaller number. Find the numbers.

Kruka [31]

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3 years ago

Please help me with this!

salantis [7]

The original area of a face would be a^2. Now that you added b to the edge, the new area of each face would be (a+b)^2. To find how much the are increased, subtract a^2 from (a+b)^2. $(a+b)^2-(a^2)= a^2+2ab+b^2-(a^2)= 2ab+b^2= b(2a+b)$ So the answer is b(2a+b)