Simplify the Expression $$\left( - 3 z ^ { 2 } - 4 z + 7 \right) + \left( 2 z ^ { 2 } + 2 z - 1 \right) - \left( 4 z ^ { 2 } - 20 z + 9 \right)$$

question 38

Multiple Choice

Simplify the expression. $$\left( - 3 z ^ { 2 } - 4 z + 7 \right) + \left( 2 z ^ { 2 } + 2 z - 1 \right) - \left( 4 z ^ { 2 } - 20 z + 9 \right)$$

• A) \(- 5 z ^ { 2 } + 18 z - 3\)
• B) \(9 z ^ { 2 } + 26 z - 3\)
• C) \(- 5 z ^ { 2 } + 18 z - 17\)
• D) \(- 5 z ^ { 2 } + 26 z - 17\)
• E)none of these

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