Question

state whether true or false (also give reason)
(I) 2x-5/2x = -5
(ii) 3(y-2) = 3y-2
(iii) 4x+3y=7xy
(iv)(3x)²+4(3x)+5=3x²+12x+5
(v)a(5a+2)=5a²+2a​

Answer 1

Step-by-step explanation:

2)

3(y-2)

3y-6 so it is false

3)

4x+3y=7xy it is false because terms with unlike variables can never be added

4)

=(3x)²+4(3x)+5

=9x²+12x+5

so it is false

5)

a(5a+2)

5a²+2a it is True

Answer 2

Answer:

(i) True

(ii) False

(iii) False

(iv) False

Reasons:

(i) Because, 2x/2x=0 & left is -5

(ii) Because, 3 × y = 3y & 3 × 2 = 6

(iii) Because, two elements with different constants cannot be added.

(iv) Because, (3x)² = (3 × x)² & 3x² = 3 × x²