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OpenStudy (anonymous):
A rectangle has dimensions 3x+5 and x+7. Write an expression for the area of the rectangle as a product and as a polynomial in standard form.
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OpenStudy (anonymous):
area of rectangle= l.b =(3x+5)(x+7)=3x(x+7)+5(x+7)
OpenStudy (anonymous):
now simplify it and write in standard form i.e ax^2+bx+c
OpenStudy (anonymous):
Ah sorry I was walking my dog. Thank you though.
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