Question

3. John and Reshma have done the multiplication of an algebraic expression by the
following methods : verify whose multiplication is correct.
John
Reshma
(1) 3 (x-4) = 3x - 4
3 (x-4) = 3x - 12
(2x)² = 4x²
(ii) (2x)2 = 2x2
(iii) (2a - 3) (a + 2) = 2d²-6
(iv) (x + 8)2 = x² - 64
(2a - 3) (a + 2) = 2a +a - 6
(x + 8)2 = x² +16x +64​

Answer 1

Answer:

Step-by-step explanation:

John and Reshma have done the multiplication of an algebraic expression by the

following methods : verify whose multiplication is correct.

John

Reshma

(1) 3 (x-4) = 3x - 4

3 (x-4) = 3x - 12

(2x)² = 4x²

(ii) (2x)2 = 2x2

(iii) (2a - 3) (a + 2) = 2d²-6

(iv) (x + 8)2 = x² - 64

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(2a - 3) (a + 2) = 2a +a - 6

(x + 8)2 = x² +16x +64​

Answer 2

Answer:

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