Mental 4to bach

Mental 4to bach

8th - 11th Grade

10 Qs

quiz-placeholder

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Mental 4to bach

Mental 4to bach

Assessment

Quiz

Mathematics

8th - 11th Grade

Easy

Created by

Ryan Valent

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 5a3+5a25a^3+5a^2  

 a(5a2+5a)a\left(5a^2+5a\right)  

 5a(a2+a)5a\left(a^2+a\right)  

 5a2(a+1)5a^2\left(a+1\right)  

 5a2(a)5a^2\left(a\right)  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 x(a1)a+1x\left(a-1\right)-a+1  

 (a+1)(x1)\left(a+1\right)\left(x-1\right)  

 (a1)(x1)\left(a-1\right)\left(x-1\right)  

 (a1)(x+1)\left(a-1\right)\left(x+1\right)  

 (a+1)(x+1)\left(a+1\right)\left(x+1\right)  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 3x39ax2x+3a3x^3-9ax^2-x+3a  

 (x3a)(3x21)\left(x-3a\right)\left(3x^2-1\right)  

 (x3a)(3x2+1)\left(x-3a\right)\left(3x^2+1\right)  

 (x+3a)(3x21)\left(x+3a\right)\left(3x^2-1\right)  

 (x+3a)(3x2+1)\left(x+3a\right)\left(3x^2+1\right)  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 a24ab+b2\frac{a^2}{4}-ab+b^2  

 (a2+b)2\left(\frac{a}{2}+b\right)^2  

 (ab2)2\left(a-\frac{b}{2}\right)^2  

 (a2b)2\left(\frac{a}{2}-b\right)^2  

 (a+b2)2\left(a+\frac{b}{2}\right)^2  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 196a10nb12x289196a^{10n}-\frac{b^{12x}}{289}  

 (14a5nb6x17)2\left(14a^{5n}-\frac{b^{6x}}{17}\right)^2  

 (13a5nb6x17)2\left(13a^{5n}-\frac{b^{6x}}{17}\right)^2  

 (13a5nb6x17)(13a5n+b6x17)\left(13a^{5n}-\frac{b^{6x}}{17}\right)\left(13a^{5n}+\frac{b^{6x}}{17}\right)  

 (14a5nb6x17)(14a5n+b6x17)\left(14a^{5n}-\frac{b^{6x}}{17}\right)\left(14a^{5n}+\frac{b^{6x}}{17}\right)  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 4(a+1)24-\left(a+1\right)^2  

 (4a1)(4+a+1)\left(4-a-1\right)\left(4+a+1\right)  

 (3a)(5+a)\left(3-a\right)\left(5+a\right)  

 (4a+1)(4+a+1)\left(4-a+1\right)\left(4+a+1\right)  

 (3+a)(5a)\left(3+a\right)\left(5-a\right)  

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 a2+x2+2ax4a^2+x^2+2ax-4  

 (ax2)(ax+2)\left(a-x-2\right)\left(a-x+2\right)  

 (ax2)(a+x+2)\left(a-x-2\right)\left(a+x+2\right)  

 (a+x2)(a+x+2)\left(a+x-2\right)\left(a+x+2\right)  

 (a+x2)(ax+2)\left(a+x-2\right)\left(a-x+2\right)  

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