Question

Consider the polynomials A=4x2−10 and B=−6x2−5 . Determine the sum and difference of these polynomials. A+B=

A−B=

Answer 1

A + B = - 2x² - 15 , A - B = 10x² - 5

A + B = 4x² - 10 - 6x² - 5 = - 2x² - 15

A - B = 4x² - 10 ) - ( - 6x² - 5 ) = 4x² - 10 + 6x² + 5 = 10x² - 5