Find the product of the sum and difference of two terms.(9x + 7y)(9x - 7y)

A. 81x2 - 49y2
B. 81x2 + 49y2
C. 81x2 + 126xy - 49y2
D. 81x2 - 126xy - 49y2


Answer: A

Mathematics

You might also like to view...

Solve.In a survey of 100 people, 30 preferred peach syrup on their ice cream. What percent did NOT prefer peach syrup?

A. 70%
B. %
C. 30%
D. %

Mathematics

Decide whether the statement makes sense. Explain your reasoning.Since our state is evenly divided between Democrats and Republicans, I figure that each of the congressional races will be decided by a small margin.

What will be an ideal response?

Mathematics

Use exponential regression to provide an approximate model for the following data.  t 1.23 4.94 8.67 12.01 15.48 y 4.20 15.08 68.05 260.75 1064.52?

A. ?
B.
C. ?
D. ?

Mathematics

Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.17° 42'

A. 197° 42'; -163° 18' B. 197° 42'; -162° 18' C. 377° 42'; -342° 18' D. 377° 42'; -343° 18'

Mathematics