Question

PLEASE HELP ME I'M FAILING MATH-

Select the correct texts in the passage. Julian factored the expression
${2x}^{4} + {2x}^{3} - {x}^{2} - x$
His work is shown. At which step did Julian make his first mistake, and which statement describes the mistake?

$julian \: should \: have \:factored \:( {2x}^{2} - 1) \: as \: a \: difference \: of \: squares \: \\ \\ julian \: incorrectly \: factored \: - 1 \: from \: the \: second \: group \: of \: terms \: \\ \\ julian \: should \: have \: factored \: 2x \: from \: all \: terms \: instead \: of \: x \: \\ \\ julian \: incorrectly \: factored \: {2x}^{2} \: from \: the \: first \: group \: of \: terms$




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Answer 1

He incorrectly factored -1