Question

6. Given x? - 1 = 4, find: (i) x +1 (iii) x2-1 (iv) x x-1​

Answer 1

Answer:

x = 5 because 5-1= 4

Step-by-step explanation:

(i) 5+1 = 6

(ii) 10 - 1= 9 (x × 2 = 2x which is 5× 2)

(iii) 25 - 1 = 24 ( xx = x square, so 5× 5)

Answer 2

Answer:

x = 5 because 5-1= 4

Step-by-step explanation:

(i) 5+1 = 6

(ii) 10 - 1= 9 (x × 2 = 2x which is 5× 2)

(iii) 25 - 1 = 24 ( xx = x square, so 5× 5)