plz answer this all questions
Attachments:
Answers
Answered by
1
Answer:
Step-by-step explanation:
12) To find the answer (3x-2y+z) must be subtracted from (x+3y-4z)
=> ( 9 x + 3y - 4z ) - ( 3x - 2y + z )
=> 9x + 3y - 4z - 3x + 2y + z
=> (9x-3x) + (3y+2y) + (-4z+z)
=> 6x + 6y - 3z
13) To find the answer, add both the trinomials
=> ( x^2 + xy - 6 ) + ( 6xy - 2x^2 + 1 )
=> x^2 + xy - 6 + 6xy - 2x^2 + 1
=> (x^2-2x^2) + (xy+6xy) + (-6+1)
=> -x^2 + 7xy - 5
14) Don't know
15) Unlike terms => x^3 , x^2 , x
Similar questions