algebra 2a - unit 3: exam ACTUAL QUESTIONS AND CORRECT ANSWERS

algebra 2a - unit 3: exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
which expression correctly shows 2x^3y − 2y factored completely? - CORRECT
ANSWERS✅✅2y(x − 1)(x^2 + x + 1)


which expression correctly shows the factored form of n^3 + 27/125? - CORRECT
ANSWERS✅✅(n + 3/5)(n^2 - 3/5n + 9/25)



what is the factored form of 121x^4 − 9y^2? - CORRECT ANSWERS✅✅(11x^2 -
3y)(11x^2 + 3y)


what are the solutions to the polynomial equation 64x^3 + 1 = 0? - CORRECT
ANSWERS✅✅x = -1/4, x = 1 + i√3/ 8, x = 1 - i√


the polynomial function f(a) = a^4 − 81 can be factored as f(a) = (a − 3)(a + 3)(a^2 + 9). what
are all of the zeros of the polynomial function? - CORRECT ANSWERS✅✅a = -3, a = 3, a
= -3i, and a = 3i


which statement correctly fills in the blank for statement 2 to complete the proof? -
CORRECT ANSWERS✅✅a(a^2 - a + 1) + 1(a^2 - a + 1)


which polynomial expression is equal to (2 − x)(2 + x)(4 + x^2)? - CORRECT
ANSWERS✅✅16 - x^4


for steps 4 through 9, match each numbered statement with the correct reason. - CORRECT
ANSWERS✅✅4. distributive property
5. combine like terms
6. substitute
7. commutative property of addition
8. rewrite by using the perfect square trinomial pattern
9. power of a product rule