Question

C) Add the following:
1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 and 2y^2 - 3x^2 - 4z^2
wrong answer ls will get reported pls help moderators ​

Answer 1

Answer:

$\green{\large {\boxed{ \sf - 5 {x}^{2} - 4 {z}^{2} }}}$

Step-by-step explanation:

$\sf \: 2x^2 – 3y^2 + 4z^2 \: + 3y^2 - 4x^2 - 4z^2 and \: \: 2y^2 - 3x^2 - 4z^2$

$\sf \: 2x^2 – 3y^2 + 4z^2 \: + 3y^2 - 4x^2 - 4z^2 + 2y^2 - 3x^2 - 4z^2$

$\sf2x^2 - 4x^2 - 3x^2 \: \: \cancel{– 3y^2+ 3y^2 + 4z^2 - 4z^2} - 4z^2$

-,- = + than we plus them

$\sf \: 2 {x}^{2} - 7 {x}^{2} - 4 {z}^{2}$

+,- = - so we Subtract them

$\large {\boxed{ \sf - 5 {x}^{2} - 4 {z}^{2} }}$

For more clearity see the above atachment

Answer 2

Step-by-step explanation:

ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ ⬇️⬆️

refer the attachment