<span>a1:f9 is not an valid range because it has neither a row nor a column in common. This contrasts with a1:a3, b1:b3, and a1:a9 which each have a row in common, as well as with a1:f1, which has a column in common.
In general, to make a valid range coordinates must be specified that allow a single row or column of cells to be specified.</span>
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The factored form of an equation is done by rewriting the equation in simpler forms.
The completely factored form of 
is 
The expression is given as:
Factor out x from the expression,
Express 64 as 8^2
Express the expression as a difference of two squares
Hence, the completely factored form of is
Read more about factorization at:
brainly.com/question/3024511
51 eggs in 4 and 1/4 dozens
100 - 45 - 20 (0.2 = 20%) - 12.5 (1/8 = 12.5%) = 22.5%
