1第12题答案确定下列各式的m的值1(x+4)(x+9)=x根号2+mx+362 (x-2)(x-18)=x根号2+mx+363 (x+3)(x=p)=x根号2+mx+364 (x-6)(x-p)=x根号2+mx+365 (x+p)(x+q)=x根号2+mx+36,pq为正整数
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![1第12题答案确定下列各式的m的值1(x+4)(x+9)=x根号2+mx+362 (x-2)(x-18)=x根号2+mx+363 (x+3)(x=p)=x根号2+mx+364 (x-6)(x-p)=x根号2+mx+365 (x+p)(x+q)=x根号2+mx+36,pq为正整数](/uploads/image/z/2113253-53-3.jpg?t=1%E7%AC%AC12%E9%A2%98%E7%AD%94%E6%A1%88%E7%A1%AE%E5%AE%9A%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E7%9A%84m%E7%9A%84%E5%80%BC1%EF%BC%88x%2B4%29%28x%2B9%29%3Dx%E6%A0%B9%E5%8F%B72%2Bmx%2B362+%28x-2%29%28x-18%29%3Dx%E6%A0%B9%E5%8F%B72%2Bmx%2B363+%28x%2B3%29%28x%3Dp%29%3Dx%E6%A0%B9%E5%8F%B72%2Bmx%2B364+%28x-6%29%28x-p%EF%BC%89%3Dx%E6%A0%B9%E5%8F%B72%2Bmx%2B365+%EF%BC%88x%2Bp%EF%BC%89%EF%BC%88x%2Bq%29%3Dx%E6%A0%B9%E5%8F%B72%2Bmx%2B36%2Cpq%E4%B8%BA%E6%AD%A3%E6%95%B4%E6%95%B0)
1第12题答案确定下列各式的m的值1(x+4)(x+9)=x根号2+mx+362 (x-2)(x-18)=x根号2+mx+363 (x+3)(x=p)=x根号2+mx+364 (x-6)(x-p)=x根号2+mx+365 (x+p)(x+q)=x根号2+mx+36,pq为正整数
1第12题答案
确定下列各式的m的值
1(x+4)(x+9)=x根号2+mx+36
2 (x-2)(x-18)=x根号2+mx+36
3 (x+3)(x=p)=x根号2+mx+36
4 (x-6)(x-p)=x根号2+mx+36
5 (x+p)(x+q)=x根号2+mx+36,pq为正整数
1第12题答案确定下列各式的m的值1(x+4)(x+9)=x根号2+mx+362 (x-2)(x-18)=x根号2+mx+363 (x+3)(x=p)=x根号2+mx+364 (x-6)(x-p)=x根号2+mx+365 (x+p)(x+q)=x根号2+mx+36,pq为正整数
1(x+4)(x+9)=x^2+mx+36 (x+4)(x+9)=x²+13x+36 ∴m=13
2 (x-2)(x-18)=x^2+mx+36 (x-2)(x-18)=x²-20x+36 ∴m=-20
3 (x+3)(x+p)=x^2+mx+36 (x+3)(x+p)=x²+(3+p)x+3p ∴3p=36 p=12 ∴m=3+12=15
4 (x-6)(x-p)=x^2+mx+36 (x-6)(x-p)=x²+(-6-p)x+6p ∴6p=36 p=6 ∴m=-6-6=-12
5 (x+p)(x+q)=x^2+mx+36,pq为正整数 (x+p)(x+q)=x²+(p+q)x+pq
∴pq=36 p=1 q=36 m=p+q=37
p=2 q=18 m=p+q=20
p=3 q=12 m=p+q=15
p=4 q=9 m=p+q=13
p=6 q=6 m=p+q=12