Khaizmil1id Khaizmil1id Math Answered polynomials: 1.(13a+11c)-(6a-4b+9c) 2.-31m+16n-14)-56m-12n+11) 3.(72a-96b-42c)+(71c-35a-14b) please paki lng poe ..... math po kc ei mahirap para sakin tnx.