Examples with solutions for Square of sum: Complete the missing numbers

Exercise #1

Fill in the blanks:

x2+?+9=(x+3)2 x^2+\text{?}+9=(x+3)^2

Video Solution

Answer

6x 6x

Exercise #2

Fill in the blanks:

(x+?)2=x2+?+25 (x+?)^2=x^2+?+25

Video Solution

Answer

5,10x 5,10x

Exercise #3

Fill in the blanks:

(?×x+?)2=16x2+32x+16 (?\times x+?)^2=16x^2+32x+16

Video Solution

Answer

4, 4 4,\text{ }4

Exercise #4

Complete what is missing:

(2x+?)2=4x2+16x+? (2x+?\rparen^2=4x^2+16x+?

Video Solution

Answer

4, 16

Exercise #5

Solve for X:

x+x=x x+\sqrt{x}=-\sqrt{x}

Video Solution

Answer

0 0

Exercise #6

Fill in the blanks:

(x2+y)2+(y2+x)2=?(x2+1)+2xy[?]+y2[?] (x^2+y)^2+(y^2+x)^2=?(x^2+1)+2xy\lbrack?\rbrack+y^2\lbrack?\rbrack

Video Solution

Answer

x2,(x+y),y2+1 x^2,(x+y),y^2+1