The expression 5x - 4 2x - 8 is not written correctly, as there is no operation between the terms 5x - 4 and 2x - 8. It seems like there might be a missing operator, such as a plus or minus sign, between the two terms. Without knowing the intended operation, it is not possible to simplify or evaluate the expression accurately.
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The answer is 20.
5
1x16 2x8 and 4x4
Yes. One example of this is 5x4+3x3-x2+9.
(9x8)+(7x6)-(5x4)+((3+2)x1)