Phân tích thành nhân tử:

a) x2 – 3 ; b) x2 – 6

c) x2 + 2√3 x + 3 ; d) x2 - 2√5 x + 5

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i those same problems in math and dont know how to do them

the transitive property of equality.

step-by-step explanation:

the correct answer is:

the transitive property of equality.

explanation:

we know that  ∠bcd is congruent to  ∠pbc. we also know that  ∠pbc is congruent to  ∠bad.

we can substitute  ∠bad for  ∠pbc in the first angle congruence statement to give us:

∠bcd is congruent to  ∠bad.

algebraically, the transitive property states if a=b and b=c, then a=c. it basically allows us to substitute equal values. since that is what we did, this is the transitive property.

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answer: 840

step-by-step explanation: