x^2+18x+11因式分解
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x^2+18x+11因式分解
x^2+18x+11因式分解
x^2+18x+11因式分解
x^2+18x+11
=x^2+18x+81-70
=(x+9)^2-70
=(x+9+√70)(x+9-√70)
x^2+18x+11因式分解
x^2+18x+11因式分解
x^2+18x+11因式分解
x^2+18x+11
=x^2+18x+81-70
=(x+9)^2-70
=(x+9+√70)(x+9-√70)