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Study the following Lewis structure which of the structure are valid and are invalid explain your

Study the following Lewis structure which of the structure are valid and are invalid explain your

Study the following Lewis structure which of the structure are valid and are invalid explain your answer​

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"Answer:

Instructions: Choose the letter of the correct answer. Write your chosen answer on a separate sheet of paper. If the answer is not found among the given choices, write your own answer. A. Transform the following quadratic equations to its standard form. 1. (x)(x) = 4 A. 2x 2 = 4 C. x 2 − 4 = 0 B. 2x 2 − 4 = 0 D. x 2 + 4 = 0 2. x(x + 3) = 4 A. x 2 + 7 = 0 C. x 2 + 3x − 4 = 0 B. 2x − 1 = 0 D. x 2 + 3x + 4 = 0 3. (x + 3)(x − 4) = 5 A. x 2 − x + 12 = 5 C. x 2 − x + 17 = 0 B. x 2 − 7x + 12 = 5 D. x 2 − x − 17 = 0 4. (2x − 3)(4x − 5) = −6 A. 8x 2 − 22x + 9 = 0 C. 8x 2 − 22x − 21 = 0 B. 8x 2 − 22x + 9 = 0 D. 8x 2 − 22x + 21 = 0 5. (x − 6) 2 = 7 A. x 2 − 12x + 43 = 0 C. x 2 − 12x + 29 = 0 B. x 2 − 12x − 43 = 0 D. x 2 − 12 − 29 = 0 6. (x − 7) 2 + (x + 8) 2 = 9 A. x 2 + x + 52 = 0 C. x 2 + x + 61 = 0 B. x 2 − x + 52 = 0 D. x 2 − x + 61 = 0 7. 2x2 5 + 5x 4 = 3 A. 8x 2 + 25x + 60 = 0 C. 7x 2 + 9x + 12 = 0 B. 8x 2 + 25x − 60 = 0 D. 7x 2 + 9x − 12 = 0 8. 6x x+5 + x−5 2 = 3 A. x 2 + 6x − 45 = 0 C. x 2 + 6x + 55 = 0 B. x 2 + 6x + 45 = 0 D. x 2 + 6x − 55 = 0"