Примени формулы сокращенного умножения

Примени формулы сокращенного умножения

7th - 9th Grade

10 Qs

quiz-placeholder

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Примени формулы сокращенного умножения

Примени формулы сокращенного умножения

Assessment

Quiz

Mathematics

7th - 9th Grade

Practice Problem

Hard

Created by

Таисия Александровна Будникова

Used 34+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

(6х-5у)(6х+5у)=

2-5у2

36х-25у

36х2-25у2

(6х-5у)2

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

(3a-2b2)2=

9a2-4b4

9a2-6ab2+4b4

9a2+12ab2+4b4

9x2-12ab2+4b4

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

(7x+8y)(8y-7x)=

7x2-8y2

64y2-49х2

49x2-64y2

(7x+8y)2

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

(9x2+4y3)2=

81x4+16y6

81x4+36x2y3+16y6

9x4+72x2y3+4y6

81x4+72x2y3+16y6

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Разложите на множители

100m8-121n10=

(10m8-11n10)(10m8+11n10)

(10m4-11n5)(10m4+11n5)

(50m4-11n5)(50m4+11n5)

нельзя

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Разложите на множители

64х4-80х2у+25у2=

(8х2-5у)2

(32х2-5у)2

(8х2-5у)

нельзя

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Разложите на множители

49k2p4+63kp2c4+81c8

(7kp2-9c4)2

(7k2p4+9c8)2

(7kp2-9c4)(7kp2+9c4)

нельзя

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