Bài tập toán cơ bản số 35

Created by T. Madas
Question 27
Square the following brackets.
2

= x2 + 6 x + 9

2

= y 2 − 18 y + 81

a)

( x + 3)

b)

( y − 9)

c)

( a + 1)

d)

2

= a 2 + 2a + 1

( k − 6)

2

= k 2 − 12k + 36

e)

(1 + w )

2

= 1 + 2 w + w2

f)

(2 − v)

2

= 4 − 4v + v 2

Question 28
Square the following brackets.

a)

(5 + x )

2

= 25 + 10 x + x 2

b)

(4 − b)

2

= 16 − 8b + b 2

c)

(t + 2)

2

= t 2 + 4t + 4

d)

( y − 5)

2

= y 2 − 10 y + 25

e)

(b + 7 )

2

= b 2 + 14b + 49

f)

( c − 8)

2

= c 2 − 16c + 64

Created by T. Madas


Created by T. Madas
Question 29
Square the following brackets.
2

= 36 + 12k + k 2

(3 − p )

2

= 9 − 6 p + p2

c)

(8 + d )

2

= 64 + 16d + d 2

d)

(7 − m)

2

= 49 − 14m + m 2

e)

( q + 10 )

f)

( 2n − 1)

a)

(6 + k )

b)

2

= q 2 + 20q + 100

2

= 4n 2 − 4 n + 1

Question 30
Square the following brackets.
2

= 9 x 2 + 12 x + 4

2

= 4 z 2 − 12 z + 9

2

= 16n 2 + 8n + 1

a)

( 3x + 2 )

b)

( 2 z − 3)

c)

( 4n + 1)

d)

(3 p + 4)

e)
f)

2

= 9 p 2 + 24 p + 16

( 2k − 2 )

2

= 4 k 2 − 8k + 4

( 4 − 2n )

2

= 16 − 16n + 4n 2

Created by T. Madas