Factor the following expression. x² - 10x +9 2 Factor the following expression . x² - 10x +9 2
2 answers:
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The algebraic expression that will represent the perimeter in centimeters of the given rectangle is:
<em><u>Recall:</u></em>
Perimeter of a rectangle = 2(L + W)
<em>Given the following dimension of a </em><em>rectangle</em><em>:</em>
- width (W) = (8.4x + 2.2) cm
- length (L) = (4.5x + 3.4) cm
To find the expression that represents the perimeter, plug in the given values into the formula for perimeter.
- Thus:
Perimeter =
- Open the bracket
Perimeter =
- Add like terms together
Perimeter =
- Multiply
Perimeter =
Therefore, the algebraic expression that will represent the perimeter in centimeters of the given rectangle is:
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The 'i' should go in front of the square root, not inside it.
So the answer should be
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The way they wrote the expression is bit misleading as it might imply that the 'i' is under the square root. However the square root ends after the "5". It might be better to say
so there is clearer separation. But sticking the "i" in front is also a valid option.
side note: the plus minus part is already handled so there's no need to worry about that.