Factorise: 54x2 + 42x3 – 30x4
2. Factorise: 2x2yz + 2xy2z + 4xyz
3. Factorise: 30xy – 12x + 10y– 4
4. Regroup the terms and factorise: z – 19 + 19xy – xyz
5. Factorise: 100x2 – 80xy + 16y2
6. Factorise: 16x4 – y4
7. Factorise: x2 + 6x + 8
8. Factorise: 49y2 – 1
9. Divide 10(x3y2x2 + x2y3z2 + x2y2z3) by 5x2y2z2.
10. Simplify: 12(y2 + 7y + 10) ÷ 6(y + 5)
answers please
Answers
Answer:
1. 6x^2(9 + 7x - 5x^2)
2. 12xyz
3. 2(15xy – 6x +5y – 2)
4. ( 1 – xy)(z – 19)
5. 4(( 5x - 2y)( 5x - 2y))
6. (4x^2 + y^2)( 2x + y)( 2x – y)
7. ( x + 2)( x + 4)
8. (7y + 1)(7y –1)
9. 2( x + y + z)
10. 2(y2 + 7y + 10) / (y + 5)
Step-by-step explanation:
1. 54x2 + 42x3 – 30x4
6x^2(9 + 7x - 5x^2)
2. 2x2yz + 2xy2z + 4xyz
4xyz + 4xyz + 4xyz
12xyz
3. 30xy – 12x + 10y– 4
2(15xy – 6x +5y – 2)
4. z – 19 + 19xy – xyz
z – xyz – 19 + 19xy
z( 1 – xy) – 19(1 – xy)
( 1 – xy)(z – 19)
5. 100x2 – 80xy + 16y2
4( 25x^2 – 20xy +4y^2)
4( 25x^2 – 10xy – 10xy +4y^2)
4( 5x( 5x - 2y) – 2y( 5x - 2y)
4(( 5x - 2y)( 5x - 2y))
6. 16x4 – y4
(4x^2 + y^2)(4x^2 – y^2)
(4x^2 + y^2)( 2x + y)( 2x – y)
7. x2 + 6x + 8
x^2 + 2x + 4x +8
x( x + 2) + 4( x + 2)
( x + 2)( x + 4)
8. 49y2 – 1
(7y + 1)(7y –1)
9. 10(x^3y^2x^2 + x^2y^3z^2 + x^2y^2z^3) /5x^2y^2z^2.
2(x^3y^2x^2 + x^2y^3z^2 + x^2y^2z^3)ω
2x^2y^2z^2( x + y + z) / x^2y^z^2
2( x + y + z)
10. 12(y2 + 7y + 10) / 6(y + 5)
2(y2 + 7y + 10) / (y + 5)
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Answer:
(10) Answer:
10 (x3y2x2+x2y3z2+x2y2z3)=2(x3yz3)
Step-by-step explanation:
10x3y2x2÷5x2y2z2+10x2y3z2÷5x2y2z2+10x2y2z3÷5x2y2z2=
2x3z2+2y+2z then
2 (x3yz3)