SOLUTION: A rectangle has an area of 2x^2 + 2x - 112.
a) If one side is (x -7) cm, show that the perimeter is 6(x +3)cm.
b) Hence or otherwise, find the range of possible values for x
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Question 1119010: A rectangle has an area of 2x^2 + 2x - 112.
a) If one side is (x -7) cm, show that the perimeter is 6(x +3)cm.
b) Hence or otherwise, find the range of possible values for x
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
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A rectangle has an area of 2x^2 + 2x - 112.
a) If one side is (x -7) cm, show that the perimeter is 6(x +3)cm.
b) Hence or otherwise, find the range of possible values for x
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(b)
Range? Possible x values - first find the roots....
Only positive factors allowed.
(a)
The other side is .
Perimetr:
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