Square abcd is transformed by a combined transformation in the line x=-1 followed by a rotation under the combined transfor!Ation two vertices of the square abcd are invariant describe fully one possible rotation

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Step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225