29x^{2}+9
Step-by-step explanation:
9x ^ { 2 } +20x ^ { 2 } +9
Combine 9x^{2} and 20x^{2} to get 29x^{2}.
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29x^{2}+9
Step-by-step explanation:
9x ^ { 2 } +20x ^ { 2 } +9
Combine 9x^{2} and 20x^{2} to get 29x^{2}.