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salantis [7]
3 years ago
11

I need help with this please

History
1 answer:
Afina-wow [57]3 years ago
7 0

Answer:

q4) answer is -3

Explanation:

f(x) = 2x^2+5x-3

substituting x=-3

2(-3)^2+5(-3)-3

2(9)-15-3=0

18-18=0

as L.H.S=R.H.S

x equals -3 is the correct answer

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