The dimensions are 2x and 4x what is area of sara''s bedroom, Mathematics

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Sara's bedroom is within the shape of a rectangle. The dimensions are 2x and 4x + 5. What is the area of Sara's bedroom?

Because the area of a rectangle is A = length times width, multiply the dimensions to ?nd out the area: 2x(4x + 5). Use the distributive property to multiply every term inside the parentheses by 2x: 2x × 4x + 2x × 5. Simplify through multiplying the coef?cients of every term and adding the exponents of the such as variables: 8x2 + 10x.


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