Find the value of `2a^4xx(-1/8a b^2)xx(16 a b^2c)` when `a=-1; b=1; c=-1`

Find the value of (2.3a^(5)b^(2)) xx(1.2 a^(2)b^(2)) when a = 1 and b = 0.5

Find the value of (-2)times(-1) (a) 2 (b) -2 (c) -1 (d) 1

Find the value of b^(2) - 4ac , if (i) a= 3,b= 9 , c = 6 (ii) a= 2, b = - 8 , c = 8 (iii) a= 1, b = 1 , c = 1 .

Find the value of : ( x^(1/2 ) + x^(-1/2 ) ) times ( x^(1/4 ) + x^(-1/4 ) ) times ( x^(1/8 ) + x^(-1/8 ) ) times ( x^(1/8 ) - x^(-1/8 ) ) ( a ) x + 1/x ( b ) ( x^2 -1 )/x

Find the value of ( a - b ) times ( a + b ) + ( b -c ) times ( b + c ) + ( c + a ) times ( c - a ) = A) -1 B) 0 C) 1

Find the value of (-9/5 +( -8/5 ) ÷ 5/2 times (-5/4 ) ) (a) -1 (b) -3 (c) 2 (d) -8