Question

® a) Simplify 3x (4x - 5) + 3 and find its values for (i) x = 3 (ii)x=
1/2
(b) Simplify a (a√2+ a + 1) +5 and find its value for (i) a=0, (ii) a=1
(iii) a = -1​

Answer 1

Answer:

ai) 3(3) (4(3) - 5) = 9×(12-5)

= 9×7

= 63

aii) 3(1/2) (4(1/2) - 5) = 1.5( 2-5 )

= -4.5

Answer 2

Answer:

a) 66, -3/2

b) 5, 8√2, 6√2

Step-by-step explanation:

hope that this will help