a) m4 + m5 - m6 - m7
b) 3x2 + 2x + 6
c) 5y3 + 4y2 - 3y + 1
d) - 3m3n5 + 7m2n4 - 9mn2 - 4
a) 2 + X2 + x4 + 3x - 2x3
b) - 3y +4y2 + 15y3
c) 43 - 11y +5y3 - 2y4 - 8y5 +20y7
d) 45w6z - 21w2z3 + 4w3z5 + 32wz7 - 14w8
e) 6 - mn2 - 2m2n4 - 5m3n5
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Verified answer
a) m4 + m5 - m6 - m7
b) 3x2 + 2x + 6
c) 5y3 + 4y2 - 3y + 1
d) - 3m3n5 + 7m2n4 - 9mn2 - 4
a) 2 + X2 + x4 + 3x - 2x3
b) - 3y +4y2 + 15y3
c) 43 - 11y +5y3 - 2y4 - 8y5 +20y7
d) 45w6z - 21w2z3 + 4w3z5 + 32wz7 - 14w8
e) 6 - mn2 - 2m2n4 - 5m3n5