Question

1. expand (a-b)^2
2.the value of the polynomial P(x) = 5x^2 - 3x+7 when x=1 is
3. evaluate (102)^3 using suitable identity

Answer 1

Answer:

1) (a-b)² = a² + b² - 2ab

2) p(1) = 5(1)² - 3(1) + 7.

=>5(1) - 3 + 7.

=>5 - 3 + 7

=> 9

value or he polynomial is 9

3) (102)³ = (100+2)³

=>(100)³ + (2)³ + 3(100)²(2) + 3(100)(2)²

=>1000000 + 8 + 60000 + 1200

=>1061208

I HOPE THIS ANSWER HELPS YOU..