Question

solve question no 2 by using identies​

Answer 1

We can solve it by using identify (a)^2 - (b) ^2

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Answer 2

Answer:

iv) 143x =( 76 )² - (67)²

Step-by-step explanation:

by using identify a² - b² = (a + b) (a-b) 143x = (76 + 67) (76 - 67) 143x = 143 × 9 143x = 1287 x = 1287/ 143 then x= 9