When $7 x y + 5 y z - 3 z x$ , $4 y z + 9 z x - 4 y$ and $- 3 x z + 5 x - 2 x y$ are added, we get $5 x y + 9 y z + 3 z x + 5 x - 4 y$ .

True

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

False

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
True

$7 x y + 5 y z - 3 z x$ + $4 y z + 9 z x - 4 y$ + $- 2 x y - 3 x z + 5 x$
= $(7 x y - 2 x y) + (5 y z + 4 y z) + (- 3 z x + 9 z x - 3 z x) + 5 x - 4 y$

= $5 x y + 9 y z + 3 z x + 5 x - 4 y$ .

Suggest Corrections

Similar questions

Find the value of $A + B + C$ if :

$A = (7 x y + 5 y z - 3 z x)$
$B = (4 y z + 9 z x - 4 y)$
$C = (- 3 x z + 5 x - 2 x y)$

Solve the following:
Add $7 x y + 5 y z - 3 z x, 4 y z + 9 z x - 4 y, - 3 x z + 5 x - 2 y$

5 x y + 9 y z + 3 z x + 5 x - 4 y

$4 x y - 5 y z - 7 z$

$- 5 x y + 2 y z + z x$

$- 2 x y - 3 y z + 3 z x$

------------------------------

Join BYJU'S Learning Program