Question

3. Multiply
(i) a2 - 2ab by 4
(ii) 2b +5c by bc
(iv) 2ab-3a2-5b + 2 by 3a²b
(iii) 2 xy +3yz - zx by -5xyz​

Answer 1

Answer:

(i) 4a2 - 8 ab

ii) 2b2c+5bc2

iii) 6a3b2 - 9a4b - 15a2b2 +6a2b

-10x2y2z -15 xy2z2 + 5 x2yz2

hope its help u

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Answer 2

Answer:

a2-2ab*4 =a4-8ab

ii) 2b+5c*bc=2b^2c+5bc^2

iii) 2xy + 3yz - zx * -5xyz= -19x^2y^2 -15 y^2xz+ 5x^2yz^2

iv) 2ab - 3a2-5b + 2 * 3a^2b= 6a^3 b^2- 9a^3 2b 15 a^2b^2 + 6 a^2 b