Practice problem
Rewrite 81x2−25y281x^2-25y^281x2−25y2 as the product of two binomials.
(81x+25y)(81x−25y)(81x+25y)(81x-25y)(81x+25y)(81x−25y)
(9−5)(x+y)(x−y)(9-5)(x+y)(x-y)(9−5)(x+y)(x−y)
(9x−5y)(9x+5y)(9x-5y)(9x+5y)(9x−5y)(9x+5y)
None of the above
Type a concept, like “slope” or “photosynthesis”.