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Classify the quadratic form below. Then make a change of variable, x = Py, that transforms the quadratic form into one with no cross-product term.

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Classify the quadratic form below. Then make a change of variable, x = Py, that transforms the quadratic form into one with no cross-product term. Write the new quadratic form.-9x1² - 6x?x2-x?²What is the most precise classification for the quadratic form?A. IndefiniteB. Positive semidefiniteC. Negative definiteD. Positive definiteE. Negative semidefinite

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