Question

can someone plz help me with this

༼ ༎ຶ ෴ ༎ຶ༽

Answer 1

Answer:

3x square + 4x - 60

3x square + 4x = 60

3x square + x + 200

3x square + x = - 200

here,

3x square + 4x = 60 -----------( 1 ) × 1

3x square + x = - 200 -----------( 2 ) × 4

3x square + 4x = 60 -------------( 3 )

12x square + 4x = - 800 ----------( 4 )

( 3 ) + ( 4 )

3x square + 4x = 60

12x sqaure + 4x = - 800

+ -. +

_____________________

15x = 860

x = 860/15

x = __________

mark as brainlist ...