Question

va rog dau coroana! Ajutorrr​

Answer 1

a)

${x}^{2} - 2 \times x \times 4 + {4}^{2} = {x}^{2} - 8x + 16$

b)

${b}^{2} - 2 \times b \times 6 + {6}^{2} = {b}^{2} - 12b + 36$

c)

${( 2a)}^{2} - 2 \times 2a \times 1 + {1}^{2} = 4 {a}^{2} - a + 1$

d)

${(2y)}^{2} - 2 \times 2y \times 5 + {5}^{2} = 4 {y}^{2} - 20y + 25$

Answer 2

Răspuns:

Explicație pas cu pas:

a .  (x-4)²=4a²-4a+1

b.   (b-6)²=b²-12b+36

c.   (2a-1)²=4a²-4a+1

d.   (2y-5)²=4y²-20y+25

e.   (3-x)²=9-6x+x²

f.   (4x-y)²=16x²-8xy+y²

g.   (2-5a)²=4-20a+25a²

h.   (3x-2)²=9x²-12x+4