Factor by GCF
Difference of Squares
Sum of cubes
Difference of cubes
100

20x2 + 4x

Correct answer is: 4x(5x + x)

100

9a4 - 4x

Correct answer is: (3a2 + 2x)(3a2 - 2x)

solution: think of a number if it is multiplied by itself the result is 9. Do the same for 4. If there is an exponent divide it by 2 or 2

100

a3 + 276 

Correct answer is: (a + 32)(a2 - 3a + 9)

Solution: Get the cube root of the binomial and get the square of the trinomial.

100

6859f - 729fg6

Correct answer is: (19f - 9fg2)(3612 + 171fg + 81fg)

Solution: Get the cube root of the binomial and get the square of the trinomial.

200

8a4b- 16ab2

Correct answer is: -2ab( -4a2b + 8ab)

200

b4c2 + x6y4

Correct answer is: (b2c + x3y2)(b2c - x3y2)

Solution: solution: Since there is no number only invisible 1 then divide the exponent by 2 or then just copy the variable.

200

216 + 343xy

Correct answer is: (6 + 7xy)(362 - 42xy + 49xy)

Solution: Get the cube root of the binomial and get the square of the trinomial.

200

729ab - 64b

Correct answer is: (9ab - 4b)(81ab + 36ab + 16b)

Solution: Get the cube root of the binomial and get the square of the trinomial.

300

90 + 81xy

Correct answer is: 9(10 + 9xy)

300

81 - 64 

Correct answer is: (9 + 8)(9 - 8)

Solution: 9x9=81 and 8x8=64. 

300

1259 + 5123

Correct answer is: (5+ 8)(252 - 40 + 64)

Solution: Get the cube root of the binomial and get the square of the trinomial.

300

216xy - 343y9

Correct answer is: (6xy - 7y3)(36xy2 + 42xy + 49y)

Solution: Get the cube root of the binomial and get the square of the trinomial.


400

9x2 + 15x4z3 + 12

Correct answer is: 3(3x + 5x3z+ 4)

400

144xyz - 121a2

Correct answer is: (12xyz + 11a)(12xyz - 11a)

Solution: 12x12=144 and 11x11=121. Copy the variable and divide the exponent by 2.

400

1000xyz12 + 8000x3

Correct answer is: (10xyz+ 20x)(100xyz2 - 200xyz + 400)

Solution: Get the cube root of the binomial and get the square of the trinomial.

400

2197fg3 - 17286

Correct answer is: (13fg - 122)(169fg2 + 156fg + 144)

Solution: Get the cube root of the binomial and get the square of the trinomial.


500

64ab + 16a4b3

Correct answer is: 16ab(4ab + 1a3b2)

500

36x6 - 49y4 

Correct answer is: (6x3 + 7y2)(6x3 - 7y2)

Solution: 6x6=36 and 7x7=49. Copy the variable and divide the exponent by 2

500

2744+ 3375

Correct answer is: (14 + 15)(1962 - 210 + 225)

Solution: Get the cube root of the binomial and get the square of the trinomial.

500

40966 - 58329

Correct answer is: (162 - 183)(2562 + 288 + 324)

Solution: Get the cube root of the binomial and get the square of the trinomial.