Try another version of this question Question 1 Select the expressions that are polynomials. There may be more than one correct answer. `5`x4+`9`x3.7+`9`x16+`14`x7 `13`x5+`6`x2+`13`x`3/8`+`4`x19 x+`7`x13+`9`x28+`5`x18 `15`x12+`6`x22+`2`x`2`+`8/x^27` `3`x-14+`12`x23+`2`x29+`8`x6 Box 1: Select all correct answers x+`7`x13+`9`x28+`5`x18
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Select the expressions that are polynomials. There may be more than one correct answer.
Box 1: Select all correct answers