Find the Indicated Sum or Difference $$\left( 7 b ^ { 2 } + 9 b \right) + \left( 9 b ^ { 2 } - 7 b + 8 \right)$$

question 18

Multiple Choice

Find the indicated sum or difference. $$\left( 7 b ^ { 2 } + 9 b \right) + \left( 9 b ^ { 2 } - 7 b + 8 \right)$$

• A) \(16 b ^ { 2 } + 2 b - 8\)
• B) \(17 b ^ { 2 } + 2 b + 8\)
• C) \(16 b ^ { 2 } + 2 b + 8\)
• D) \(16 b ^ { 2 } + 2 b\)
• E) \(16 b ^ { 2 } + 16 b + 8\)

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Definitions:

Reflexes

Automatic and involuntary responses to stimuli, which are innate and occur without conscious thought.

Babbling

An infant’s repetition of certain syllables, such as ba-ba-ba, that begins when babies are between 6 and 9 months old.

Cooing

A phase in early language development characterized by the production of soft, vowel-like sounds by infants, often seen as a precursor to babbling.

Primary Means

The main or most direct method or tool used to achieve a goal or fulfill a function.