计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2分解因式:(a²+a)²-8(a²+a)+12解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)
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![计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2分解因式:(a²+a)²-8(a²+a)+12解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)](/uploads/image/z/14984600-32-0.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%28-1%2F8ab%29%2A%28-5a%5E2b%29%2B6a%5E5b%5E4%C3%B7%284ab%29%5E2%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A%28a%26%23178%3B%2Ba%29%26%23178%3B-8%28a%26%23178%3B%2Ba%29%2B12%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A%28x%2B5%29%26%23178%3B%2B%28x%2B3%29%28x-3%29%3D%28x-7%29%282x%2B1%29)
计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2分解因式:(a²+a)²-8(a²+a)+12解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)
计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2
分解因式:(a²+a)²-8(a²+a)+12
解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)
计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2分解因式:(a²+a)²-8(a²+a)+12解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)
计算:(-1/8ab)*(-5a^2b)+6a^5b^4÷(4ab)^2
=5/8a^(1+2)b^(1+1)+6a^5b^4÷16a^2b^2
=5/8a^3b^2+3/8a^(5-2)b^(4-2)
=5/8a^3b^2+3/8a^3b^2
= a^3b^2
分解因式:(a²+a)²-8(a²+a)+12
=(a²+a-2)(a²+a-6)
=(a+2)(a-1)(a+3)(a-2)
=(a-1)(a-2)(a+2)(a+3)
解方程:(x+5)²+(x+3)(x-3)=(x-7)(2x+1)
x²+10x+25+x²-9=2x²-13x-7
2x²+10x+16=2x²-13x-7
23x=-23
X=-1
1.方程式=-5/8*a^3b^2+3/8*a^3b^2=-a^3b^2/4
2.=(a²+a-4)²-4=(a+1/2)²-15/4-4=(a+1/2)²-31/4
3.解方程得: x²+10x+25+x²-9=2x²-14x+x-7
23x=-23
得出:x=-1