If both sides of the equation are divided by a non-zero number, the left and right sides are still equal______ (judge right or wrong)

If both sides of the equation are divided by a non-zero number, the left and right sides are still equal______ (judge right or wrong)


According to the above analysis, we know that the nature of the equation is: divide both sides of the equation by a number that is not zero, and both sides of the equation are still equal



When solving the irrational number equation, we should square both sides of the equation, but this is not equal to multiplying the two sides of the equation by different numbers
Isn't it true to multiply the same number on both sides of the equation


Because left = right, so left * left = right * both sides of the right equation can be multiplied by the same number; it can also be squared



It is known that the equation three x square minus ten x plus k equals zero and has two real roots with the same sign but not equal


3x²-10x+k=0
There are two real roots with the same sign but not equal
Then ① Δ = 100-12k > 0 = = > K0 = = > k > 0
① At the same time
The range of K is 0



2.14 divide by the quotient of 4 / 15 to get 5 / 3 of a number?


2.14/15/4=3X/5,
2.14*4/15=3X/5,
X =0.95111111111111111111111...