I : tìm x

a) 4x^2-9-2(3-2x)=0

I : phân tích đa thức thành nhân tử

a) x^4+4

I : Tìm x

a) x^2 - 4 + 2(x+1)=0

b) 4x^2+1=4x

c) x^2-x-6=0

I ; Tính giá trị biểu thức

B=2x+xy^2-x^2y-2y tại x=-1/2 ; y=-1/2

I : Phân tích đa thức thành nhân tử

a) x^2-y^2+4y-4

b) 8x^3-1

c) x^2-x-42

d) x^2-4x-5

e) 6x^2-x-5

I : Rewrite the following sentences

1: Marc ate a lot of pizza when he was a child

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2:Nana speaks good English so she will pass the English exam

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3: Women wore long skirts in the 19th century

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4: Julia can skate on the ice for hours , she dóe it quite well

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5: When I went to school I wore a uniform

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6: It is difficult for me to get up early but I think I will become accustomed to it on a few days

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7: Kim is a lawyer so she speaks with criminals every day

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8: Women didn't vote in elections a long time ago

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9: I smoked a lot two years ago but I don't know

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10 : I have worn glasses for 10 years so I don't mind wearing them

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11: I just moved to Ireland , I hope to become accustomed to driving on the left quickly

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help me