<span>We have to find the product : ( 9 t - 4 ) ( - 9 t - 4 ) = - ( 9 t - 4 ) ( 9 t + 4 ) After that we can use the difference of squares. The formula is: ( a + b ) ( a - b ) = a^2 - b^2. In this case: - ( 9 t - 4 ) ( 9 t + 4 ) = - ( 81 t^2 - 16 ) = - 81 t^2 + 16 . Answer: B ) - 81 t^2 + 16.</span>
Answer:
Associative Property of Reciprocals
Answer:
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Step-by-step explanation:
Simplify 1/2p to p/2
subtract 15 from both sides
multiply both sides by 2
regroup terms
switch sides
Answer: p = 2(q - 15)
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