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Please help me with my sample work

Instructions: Give the answer and explain how you got the answer or show your work

(ONLY THE ONES THAT ARE CIRCLED AKA 33 AND 39)

Please help me with my sample work Instructions Give the answer and explain how you got the answer or show your work ONLY THE ONES THAT ARE CIRCLED AKA 33 AND 3 class=

Respuesta :

33)
(5x²+3)+(15x²+2)
5x^2+15x^2+3+2
20x^2+5
5(4x^2+1)

39)
(14h^4+3h^3)-(9h^4+2h^3)
14h^4-9h^4+3h^3-2h^3
5h^4+h^3
h^3(5h+1)


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