Martin purchased 2 dozen roses on sale at the local florist shop. If each rose cost $2.50, how much did Martin spend? martin spe
2 answers:
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Answer:
x = ±
Step-by-step explanation:
3x² + 7 = 28 ( subtract 7 from both sides )
3x² = 21 ( divide both sides by 3 )
x² = 7 ( take square root of both sides )
x = ±
that is x = - , x =