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2"×"𝑥 =!!!!7"×"𝑎 =!!!!2"×"𝑥"×"𝑦" =!
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𝑥"×"𝑥" =!!!!𝑏"×"7"×"𝑏" =!!!!𝑎"×"𝑎"×"𝑎 =!
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4 + "5"×"𝑥" =!!!!11 − "7"×"𝑎!!!!2"×"𝑥"×"9 − 𝑥" =! ! ! !
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"𝑥0+ 𝑥0" =!!!!𝑥 + "𝑥"×"𝑥" =!!!!2𝑥0"+3"𝑥0" =!
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"!,21>3<15!C!!!!A =!5x − 2 + 3x + 7!!
A = 5x −2 + 3x +7
A = 5x + 3x −2 + 7
A = 8x + 5
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B = 5x2 + x − 2x2 + 5x − 11
B = 5x2 + x −2x2 + 5x −11
B = 5x2 −2x2 + x + 5x −11
B = 3x2 + 6x − 11
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C = 2b + 2 + 7b + 11 D = 13a2 + 5a − 2a2 + 3a + 1
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