3 years ago

(D2+6d+9)+(d3-6d+9)

Mathematics

2 answers:

sweet [91]3 years ago

6 0

Collect like terms:

(8d+9) +(-3d+9)

Remove paranthesis:

8d+9-3d+9

Answer:

5d+18

Simora [160]3 years ago

4 0

Answer:5d+18

Step-by-step explanation:

(8d+9)+(-3d+9)

8d+9+-3d+9

8d-3d=5d

9+9=18

5d+18

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