The sum of the two polynomials is 10a^2b^2
the answer is a i could not find the answer anywhere so that’s why i’m putting the answer down for future students say you to me

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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answer is c chief it always is