Question

sum of x²-y²‚y²z² and z²x2
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Answer 1

Step-by-step explanation:

first we set like terms =y²,z²

sum of :

→ (x²-y²) +(y²+z²) +(z²×2)

→ (x²-y²) +(y²+z²) +2z²

→ x²(-y²+y²)+(z²+2z²)

→ x²+0+3z²