x.(x+1)=1563750
x.x+x=1563750
x^2+x=1250^2+1250
=>x=1250
ai thấy mk đúng thì ****!!!!!!
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x.(x+1)=1563750
x.x+x=1563750
x^2+x=1250^2+1250
=>x=1250
ai thấy mk đúng thì ****!!!!!!
Tim x biết x.(x + 1)=2+4+6+....+2500
tim so tu nhien ,biet:\(x.\left[x+1\right]=2+4+6+8+...+2500\)
tim x
x.(x+1)=2+4+6+8+...+2500
giai gium mink nha
X×(X+1)=2+4+6...2500
x[x+1]=2+4+6+...+2500
x.(x+1)=2+4+6+8+10+...+2500
x.(x+1)=2+4+6+...+2500
x.[x+1]=2+4+6+...+2500
x.(x+1)=2+4+6+8+10+.........+2500