Toán Lớp 8: tìm x giúp mình với
a)(2x –1) ^2 + (x + 3)^2–5(x + 7)(x –7) = 0
b)22(2x+1)^2-(x+1)^2=0
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Toán Lớp 8: tìm x giúp mình với
a)(2x –1) ^2 + (x + 3)^2–5(x + 7)(x –7) = 0
b)22(2x+1)^2-(x+1)^2=0
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