The value if a, if the value of -x^2+3x-a is equal to 8, when x=-1, is
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Answer:
-12 ans.
Step-by-step explanation:
–(–1)²+3(–1)–a=8
–(1) –3–a=8
–1 – 3–a=8
–4-a=8
–a=8+4
-a=12
a=–12 answer
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