Question

ajutati maaaa ex din poza​

Answer 1

Explicație pas cu pas:

a)

= (5x²)² - [2(x²-2x+3)]²

= [5x²-2(x²-2x+3)]•[5x²+2(x²-2x+3)]

= (5x²-2x²+4x-6)•(5x²+2x²-4x+6)

= (3x²+4x-6)•(7x²-4x+6)

b)

= [3(x+2)]² - [2(3x-7)]²

= [3(x+2)-2(3x-7)]•[3(x+2)+2(3x-7)]

= (3x+6-6x+14)•[3x+6+6x-14)

= (-3x+20)•(9x-8)

c)

= (x+1)² - y²

= (x+1-y)•(x+1+y)

d)

= (x²+y)² - (x+3)²

= [(x²+y)-(x+3)]•[(x²+y)+(x+3)]

= (x²+y-x-3)•(x²+y+x+3)

e)

= (x²-3x+4)² - (x²+2)²

= [(x²-3x+4)-(x²+2)]•[(x²-3x+4)+(x²+2)]

= (x²-3x+4-x²-2)•(x²-3x+4+x²+2)

= (-3x+2)•(2x²-3x+6)

f)

= (x-√3)² - (y+2√3)²

= [(x-√3)-(y+2√3)]•[(x-√3)+(y+2√3)]

= (x-√3-y-2√3)•(x-√3+y+2√3)

= (x-y-3√3)•(x+y+√3)