SOLUTION: 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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Question 842965: 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.
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
The area product is simply %283x%2B5%29%28x%2B7%29, which can multiply if desired to obtain highlight%283x%5E2%2B26x+%2B35%29.

You can use Completion of the Square on the trinomial product to put this trinomial into standard form. You would want this form to be like %28x-h%29%5E2%2Bk.
Study the lesson http://www.algebra.com/tutors/Completing-the-Square-Using-Pictures.lesson?content_action=show_dev
Which explains the process, meaning, and method very thoroughly.