Question

Combine like terms to complete the equivalent expression.

2 1/2 z² + 4 1/2 + 7z - 4 +5z - 1/2 z² = ( _ z² - _z²) + ( 7z + _ z) + ( _ - _) = _z²+ _ z +_
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Answer 1

Try and put E=Mc square its theoriticaly always right when using variable

Explanation: