Question

Which of the following is NOT true? Question 19 options: (3x2y5)3=27x6y15 (1000x12y20z−3)0=1 52‾‾√3=523 42×43= 165

Answer 1

Explanation:

Lets try to simplify each to check which one is incorrect so it will be NOT true

first one is :

distribute the exponent so :

`(3x^2y^5)^3 =3^3x^(2*3)y^(5*3)`

`27x^6y^(15)` CORRECT

Second one is :

`(1000x^(12)y^(20)z^(-30))^(0) =1`

CORRECT because anything raised to exponent 0 is 1 .

Last one is :

`4^2 *4^3 = 4^(2+3)\\=4^(6)\\=(4)^(2*3)\\=16^(3)`

so Last is INCORRECT