Math, asked by sindhub192007, 5 months ago

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4x² +78 +3 and 5x² - 98-4

Answers

Answered by poonamsingha816

1

Answer:

9x^2-21

Step-by-step explanation:

(4x^2+78+3)+(5x^2-98-4)

=(4x^2+81)+(5x^2-102)

=4x^2+81+5x^2-102

=4x^2+5x^2+81-102

=9x^2-21

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