Ask your own question, for FREE!
Mathematics 17 Online
marissabartoldo:

help

marissabartoldo:

marissabartoldo:

@AZ

AZ:

Do you know how to find the area of a square? The area of the shaded region can be found by first finding the area of the larger square and then you subtract the area of the smaller square

AZ:

so basically area of larger square - area of smaller square what is the area of the larger square? area = side * side the side is (x+8) what is the area?

marissabartoldo:

x^2+16x+64

AZ:

Good! Now what about the smaller square that has side 7

marissabartoldo:

so x^2+16x+57

AZ:

no no you have to first find the area of the smaller square with side 7 area = 7 * 7 and then we have to subtract that from the area of the larger square

marissabartoldo:

yeah the area of the smaller square is 49 and I subtracted that and got x^2+16x+57

AZ:

how did you subtract it to get that? you have x^2 + 16x + 64 - 49 what is 64 - 49 = ?

marissabartoldo:

oh 18 so its x^2+16x+18

marissabartoldo:

I accidentally subtracted 7 my bad

AZ:

uhhh no 64 - 49 = 15

marissabartoldo:

Oh my gosh I'm stupid I don't know how that happened sorry

marissabartoldo:

is it units, cubic units, or square units

marissabartoldo:

@AZ

marissabartoldo:

@snowflake0531

snowflake0531:

Area is always square units

marissabartoldo:

ok thanks

snowflake0531:

yw~

AZ:

yes, remember the side length is `units` the area is always going to be `square units` volume will always be `cubic units`

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!