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Mathematics 10 Online
OpenStudy (anonymous):

help please

OpenStudy (mrnood):

are you trapped somewhere?

OpenStudy (hanner_b_nanner):

Lol^^ What do you need help with??? @MUNCH300 :))

OpenStudy (anonymous):

ahahah yeah my classroom

OpenStudy (anonymous):

Im Just play it this Problem

OpenStudy (anonymous):

Both figures below are squares. Find the area of the UNSHADED region. Write your answer in standard form.

OpenStudy (anonymous):

a. –2x^2 + 10x + 25 b. x^2 + 8x + 25 c. 10x + 25 d. x^2 + 10x + 25

OpenStudy (mrnood):

OK - so what is the area of the shade region? (square has side x)

OpenStudy (mrnood):

THEN What is the are of the large square (square has side = x+5)

OpenStudy (anonymous):

The big one is 20

OpenStudy (mrnood):

no it isn't - the side is 5+x what is the area?

OpenStudy (mrnood):

Start with this:- If a square has side length L what is its area?

jhonyy9 (jhonyy9):

c. is right but you know it why ?

jhonyy9 (jhonyy9):

little square has area x^2 ,yes ? bigger has (x+5)^2

jhonyy9 (jhonyy9):

so than just subtract from area of bigger square what is x^2 10x +25 area of shaded square what is x^2 and will get the c. chose

jhonyy9 (jhonyy9):

ok ?

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