Question

Solve these using these formula :-
[(x + a) (x + b) = x + (a + b) x + ab]

(1) 103 x 104 (2) 5.1 x 5.2 (3) 103 x 98​

Answer 1

Step-by-step explanation:

( 100+3)(100+4)

X=100 a=3 b=4

10000 + 700 + 12

10712

(5.0+0.1)(5.0+0.2)

25 + 1.5 + 0.2

26.7