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<em>Hey, love!</em>
<em>The question you have added seems to have some type of error, all that is visible is a black screen. Try posting this question again or taking a shot of the pic again! Without the clear question this answer will be difficult for others to answer.</em>
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Answer:
-(270%) = -2.7
Step-by-step explanation:
Hope it helps! ^-^

You can get this by using the quadratic equation with a = 7, b = -1, c = -9