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Harman [31]
3 years ago
5

Find (2x^2-4)-(5x^2+2)+(7x^2-5)

Mathematics
1 answer:
fomenos3 years ago
7 0
( 2x² - 4) - ( 5x² + 2 ) + ( 7x² - 5)   = ( 2x² - 4 -  5x² - 2  +  7x² - 5)
                                                     
                                                     =  (2x² -  5x² +  7x²  - 4 - 2  - 5)

                                                     =  4x² - 11
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