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solmaris [256]
3 years ago
9

Pleasee help wit this

Mathematics
2 answers:
Anna71 [15]3 years ago
6 0

Answer:

Step-by-step explanation:

f(-9)=2(-9)²+5(-9)+20

      = 162-45+20

      = 137

balu736 [363]3 years ago
5 0

Answer:

137

Step-by-step explanation:

f(-9) = 2(-9)^2 + 5(-9) + 20

= 162 - 45 + 20

= 137

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