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Earn +20 ptsQ: 4x2 plus 28x plus 49
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What value of c makes 4x2-28x plus c a perfect square?
49 Check when:- 4x2-28x+49 = 0 (2x-7)(2x-7) = 0 x = 7/2 and also x = 7/2
What is the area of a square in terms of x if one side has 2x-7 units?
(2x-7)(2x-7) = area 4x2-28x+49 = area
How do your factor 64 x cubed plus 343?
(4x + 7)(16x2 - 28x + 49)
What is the answer of this addition 48 plus 49 plus 49 plus 49 plus 49 plus 50 plus 50 plus 50 equals?
4849494949505050------394
Factor 4x2 plus 28xy plus 49y2?
4x^(2) + 28xy + 49y^(2) -> (2x)^(2) + 28xy + (7y)^2 Split into brackets ( 2x + 7y)(2x + 7y) If you applyuFOIL you will find toy come to '28xy'. The clue to this problem is to note that '4' ^ '49' are both squared numbers.
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