Math, asked by ekamghuman51, 9 months ago

explain the answer properly.

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Answered by pranavgreat169

1

Answer:

(d) -12

Step-by-step explanation:

- $-x^{2} +3x-a=8\\-(-1)^{2} +3(-1)-a=8\\-(1)-3-a = 8\\-4-a = 8\\-4-8=a\\-12=a$

therefore a = -12

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