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Mathematics 12 Online
Anthony22054:

Am I right? ss below

Anthony22054:

Anthony22054:

anyone?

Anthony22054:

@AZ

AZ:

(7+2x)(8+2x)=58 and expanding that and setting it equal to 0 gets you 4x^2 +30x - 2 = 0 so good job, Anthony!!

Anthony22054:

Thank you so much AZ

Anthony22054:

also, what does the x represent?

AZ:

if you look in the image, the 7 by 8 rectangle is the painting the 'x' is the dimensions of the frame that surrounds the painting

AZ:

so if you read your question again, it says "thickness of the frame" which is exactly what the equation you found will find

Anthony22054:

ohhhhh ok thank you

AZ:

Of course! It was my pleasure :)

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