Question

Q.1. Choose the correct alternative for each of the following questions :- 1) (1 + x) (3 – x) = _______ a) x2 = 6 b) x2- x+6 c) x2+x+6 d) x2- 5x+6 2) (x + 2y)² = x² + ___ + 4y² a) 4xy b) 20xy c) -4xy d) -10xy 3) (x – 5y)² = x² – ___ + 25y² a) 5xy b) 10xy c) -5xy d) -10xy 4) (101)3 = (100 + 1)3 = __ a) 100909 b)103001 c) 1030301 d) 3030101

Answer 1

Answer:

Step-by-step explanation:

Two quadratic equations are  

x2+10x-200=0 and x2+5x-6=0.

pls add me as brilliant