Question

Q. 18 Which of the following is not true?
(a) (7 + 8) + 9 = 7+ (8 + 9)
(b) (7 X 8) x 9 = 7 X (8 x 9)
(c) 7 + 8 X9 = (7 + 8) X (7 + 9)
(d) 7 X (8 + 9) = (7 X 8) + (7 x 9)​

Answer 1

Answer:

option c is not true

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Answer 2

Answer:

(C) is not correct.

Step-by-step explanation:

7+8x9=79

and

(7+8)x(7+9)=240

So 7+8x9 is not equal to (7+8)x(7+9).