wzory skróconego mnożenia

wzory skróconego mnożenia

9th Grade

12 Qs

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wzory skróconego mnożenia

wzory skróconego mnożenia

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Olga Dąbkowska

Used 62+ times

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12 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (x+4)2=\left(x+4\right)^2=  

 x2+16x^2+16  

 x2+8x+16x^2+8x+16  

 x2+4x+16x^2+4x+16  

 x2+8x+8x^2+8x+8  

2.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 (5x1)2=\left(5x-1\right)^2=  

 25x25x+125x^2-5x+1  

 25x210x125x^2-10x-1  

 25x2125x^2-1  

 25x210x+125x^2-10x+1  

3.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 x24x+4=x^2-4x+4=  

 (x2)2\left(x-2\right)^2  

 (x+2)2\left(x+2\right)^2  

 (x4)2\left(x-4\right)^2  

 (x+4)2\left(x+4\right)^2  

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 49x27x+14=49x^2-7x+\frac{1}{4}=  

 (7x+12)2\left(7x+\frac{1}{2}\right)^2  

 (7x14)2\left(7x-\frac{1}{4}\right)^2  

 (7x12)2\left(7x-\frac{1}{2}\right)^2  

 (7x12)(7x+12)\left(7x-\frac{1}{2}\right)\left(7x+\frac{1}{2}\right)^{ }  

5.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

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

 x21x^2-1  

 x2+1x^2+1  

 (x+1)2\left(x^{ }+1\right)^2  

 (x1)2\left(x^{ }-1\right)^2  

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 9x216=9x^2-16=  

 (3x+4)(3x+4)\left(3x+4\right)\left(3x+4\right)  

 (3x4)(3x4)\left(3x-4\right)\left(3x-4\right)  

 (3x+4)(43x)\left(3x+4\right)\left(4-3x\right)  

 (3x4)(4+3x)\left(3x-4\right)\left(4+3x\right)  

7.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

 8x240xy+50y2=8x^2-40xy+50y^2=  

 8(x5y)28\left(x-5y\right)^2  

 4(x5y2)24\left(x-5y^2\right)^2  

 2(x5y)22\left(x-5y\right)^2  

 2(2x5y)22\left(2x-5y\right)^2  

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