Question

meee ajudem pfvr ❤️
.....

Answer 1

a

${3x}^{2}$

b
${5x}^{2}$

c
${ - 12y}^{2}$

d
${ - 7x}^{2}$

e
$6x$

f
$6x$

Answer 2

a) (3+x)² =

(3+x).(3+x)= 9+3x+3x+x²= 9+6x+x²


b) (x+5)² =

(5+x).(5+x)= 25+5x+5x+x² = 25+10x+x²


c) (12-y)² =

(12-y).(12-y) = 144-12y-12y+y² = 144-24y+y²


d) (7-x)² =

(7-x).(7-x) = 49-7x-7x+x²= 49-14x+x²


e)(3+x).(3-x)=

9+3x-3x-x²= 9-x²


f) (3-8x).(3+8x)=

9-24x+24x-64x² = 9-64x²



Espero ter ajudado, bons estudos!!^^