Question

mim ajudar a responder uma ​

Answer 1

$a) - 7x^{2} + 19x-10\\b) +4y^{2} + 16y-6\\c)+12x^{2} \\d)+15ax^{2} \\e) +12x^{8} \\f)+12a^{7}b^{10} \\g)+ 7a^{4} \\f)+13b^{5}$