2x+16=64 (2)2x-7点4=120 (3)
1个回答
(1) 2×=64-16=48,即×=24
(2)2×=120+7.4=127.4即
×=127.4÷2=63.7
相关问题
(x∧2-4x)∧2+16(x∧2-4x)+64
分解因式:①(a+b)^2+2(a+b)+1 ③4x^4-4x^3+x^2 ④x^2-16ax+64a^2 ⑤(x-1)
解下列方程 (1)2(x+5)=-4-x (2)6(7x+16)=7(8x-2) (3)3x-1=4x-(x-7) (4
x^2+y^2=64 (8-x)^2+(y-4)^2=16 怎么解的?
8+2.X=16 6X-35=13 1.7X+13.4=27 2x+3.4=7.2
3/4x+1/4=3/8 x÷2/7=7/16 x+7/8x=3/
4x-(2x+y+16)/2=-6y 2x+3y=7-x-2y
解方程.(1)[9x+7/3x+2-4x+52x+3]=1(2)[x-2/x+2-1=16x2-4].
(4/X+2)+(16X^3/X^4-16)+(8X/X^2+4)+(4/X-2)
(x2+3x+12)(x2+7x+12)-120