Add or subtract as indicated.
1.(3x+2)+(4x+6)
2. (2x + y + 3z)+ (x – y +z)
3.(x²+2)+(x²-5)
4.(3a² + 2a-1)+(6²+0+1) - a+1
5.(2x² + 3x-1)+(x²-x+2)
6.(2z-z²+5)+(2²-32+1) -
7. (3-20²+0): 6²-1-3)
8. (4m – 2n)-(3m+ 3n) -
9. (6a + 2b - 7)-(a-b+2)
10. (2+8)– (492 +1)
1.(3x+2)+(4x+6)
2. (2x + y + 3z)+ (x – y +z)
3.(x²+2)+(x²-5)
4.(3a² + 2a-1)+(6²+0+1) - a+1
5.(2x² + 3x-1)+(x²-x+2)
6.(2z-z²+5)+(2²-32+1) -
7. (3-20²+0): 6²-1-3)
8. (4m – 2n)-(3m+ 3n) -
9. (6a + 2b - 7)-(a-b+2)
10. (2+8)– (492 +1)
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
i) (x+2y+4z)
2
1. =x
2
+(2y)
2
+(4z)
2
+2(x)(2y)+2(2y)(4z)+2(x)(4z)
2.=x
2
+4y
2
+16z
2
+4xy+16yz+8xz
ii) (2x−y+z)
2
3.=(2x)
2
+(−y)
2
+(z)
2
+2(2x)(−y)+2(−y)(z)+2(2x)(z)
4.=4x
2
+y
2
+z
2
−4xy−2yz+4xz
iii) (−2x+3y+2z)
2
5.=(−2x)
2
+(3y)
2
+(2z)
2
+2(−2x)(3y)+2(3y)(2z)+2(−2x)(2z)
6.=4x
2
+9y
2
+4z
2
−12xy+12yz−8xz
iv) (3a−7b−c)
2
7.=(3a)
2
+(−7b)
2
+(−c)
2
+2(3a)(−7b)+2(−7b)(−c)+2(3a)(−c)
8.=9a
2
+49b
2
+c
2
−42ab+14bc−6ac
v) (−2x+5y−3z)
2
9.=(−2x)
2
+(5y)
2
+(−3z)
2
+2(−2x)(5y)+2(5y)(−3z)+2(−3z)(−2x)
10.=4x
2
+25y
2
+9z
2
−20xy−30yz+12xz
iv) (
4
1
a−
2