Question

What should be subtracted from 2x² - 5y + 7z² to get x²- y² + z²
a) x² - 4y² + 6z²
c) 3x² - 2y² + 2z²
b) x² - 3y² + 6z²
d) x² - y² + z²​

Answer 1

Answer:

a)x²-4y²+6z²

Step-by-step explanation:

i hope it helps you

Answer 2

Answer:

$\tiny\mathfrak\green{Good~morning}$

a)x² - 4y² + 6z²