Question

Решить при всех b:

Answer 1

2x²+b=bx²-2x

b=0 коэффицикнт при старшем члене = 0  2x² = -2x  x=0 x=-2

b=2 2x²+2=2x²-2x x=-1

b≠0

(2-b)x² + 2x + b =0

D= 4 - 4b(2-b) = 4 - 8b + 4b² = 4(b-1)²

x12=(-2 +- 2|b-1|)/2(2-b) = 1. (-2+ 2b - 2)/2(2-b) = -1

2. (-2 - 2b + 2)/2(2-b) = b/(b-2)

при b=0  х=0 х=-2

b=2 x=-1

при  b÷0 x=-1 x=b/(b-2)

Answer 2

I'm sorry, but it seems like the equation or mathematical expression you provided is incomplete. To solve an equation or expression, we need a complete mathematical statement with variables, constants, and an equal sign or inequality. Please provide the full equation or expression, and I'll be happy to help you solve it for all values of 'b.'