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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: Rút gọn biểu thức : B= √16x+16 – √9x-9 + √4x+4 + √x+1

Toán Lớp 9: Rút gọn biểu thức :
B= √16x+16 – √9x-9 + √4x+4 + √x+1

Comments ( 1 )

  1. #nam0103
    B= $\sqrt{16(x+1)}$ $-$ $\sqrt{9(x+1)}$ $+$ $\sqrt{4(x+1)}$ $+$ $\sqrt{(x+a)}$}$
     B= $4$$\sqrt{x+1}$ $-$ $3$$\sqrt{x+1}$ $+$ $2$$\sqrt{x+1}$ $+$ $\sqrt{x+1}$  
    = $4$$\sqrt{x+1}$  
     

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222-9+11+12:2*14+14 = ? ( )