Q79 of 128 Page 224

State whether the statements are true (T) or false (F).
(9x – 51) ÷ 9 is x – 51.

Solving (9x – 51) ÷ 9,

(9x – 51) ÷ 9 = (9x – 51)/9

9 divides the term 9x but does not divide 51.

So, the answer comes out to be (9x – 51)/9.

(9x – 51)/9 ≠ x – 51

Hence, the statement is false.

State whether the statements are true (T) or false (F).

On dividing by, the quotient is 9.

State whether the statements are true (T) or false (F).

The value of p for 51² – 49² = 100p is 2.

State whether the statements are true (T) or false (F).

The value of (a+1) (a-1) (a²+1) is a⁴-1

Add:

7a²bc, -3abc², 3a²bc, 2abc²

State whether the statements are true (T) or false (F).(9x – 51) ÷ 9 is x – 51.