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What is the standard form of the quadratic equation $7-2x^{2}=$ = $9x7$ a. $7-2x^{2}-9x=0$ c. $2x^{2}+9x$ $-7=0$ $b$ $-2x^{2}$ $-2x^{2}+7-9x=0$ d. $=$ $2x^{2}-9x-7=0$
7th-9th grade
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Qanda teacher - Anshul
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please give me review by 5 ?