If we add, 7xy + 5yz - 3zx, 4y2 +9zx - 4y and -
3x2 + 5x - 2xy, then the answer is:
A. 5xy + y2 +3zx + 5x - 4y
B. 5xy - 9y2 +3ZX - 5x - 4y
C. 5xy +10y2 +3zx + 15x - 4y
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D. 5xy + 10yZ +3ZX + 5x - 6y
Answers
Answered by
0
Answer:
a
Step-by-step explanation:
i dont have my answer not sure the answer
Answered by
0
Answer:
7xy + 5yz - 3zx+ 4yz +9zx - 4y+(-3xz) + 5x - 2xy
=7xy + 5yz - 3zx+ 4yz +9zx - 4y-3xz+ 5x - 2xy
= (7xy-2xy) + (5yz+4yz) + (-3zx+9zx-3zx)+5x +(-4y)
= 5xy + yz +3zx + 5x - 4y
hence option A is correct
Step-by-step explanation:
TIP FROM MY SIDE
see in addition and substraction of algebric expression you see the likke terms and and or subtract.
like terms such as= 2y and 27y are like terms.
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