甲(-)主項變換🌟🌟 Flashcards

1
Q

若 題目以 a為主項,答案的形式是 ?

A

a =…

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2
Q

在主項變換時,時常會把數字和符號左右換位,過程中要注意甚麽?

A

加變減,減變加
乘變除,除變乘

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3
Q

把 x 變為主項
y = x - k
y = x + w
y = r x
y = x / k

A

x = y + k
x = y - w
x = y/r
x = ky

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4
Q

展開 a ( x + y)
因式分解 kr - ks

A

ax + ay

k(r - s)

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5
Q

處理主項變換的數時, -般會如何處理 有主項的項非主項的項

A

分開,把有主項的放在-邊,非主項的放另一邊

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6
Q
A
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7
Q
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8
Q
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9
Q
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10
Q
A
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11
Q

😈
K 為主項

A
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12
Q

☠️
y 為主項 (方法-:通分母)

A
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13
Q

☠️
y 為主項
(方法二:左右乘 xyw)

A
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14
Q

☠️
y 為主項
(方法三:先分開y 項和非y項)

A
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