Question

1 ) Simplify the expression and find its value
i) when = - 2, 2 + 2 - 2( 5 + 4 )
ii) when = -2 , 32 + 5 - 42 – 4
iii) when = 2, = -1, 2( 2 + ) + 7 + 2 – – 4
iv) when = - 1 , 43 + 6 -5+11 - 2 – 53

2 ) Find the value of if the value of 32 – 2 + equals to – 4 when = 2.

Answer 1

i) 16

ii) -18

iii)7

iv) -1