raegularfood
raegularfood raegularfood
  • 22-02-2019
  • Mathematics
contestada

what number should be added to the expression x^2 + 10x to change it into a perfect square trinomial?​

Respuesta :

gmany
gmany gmany
  • 24-02-2019

Answer:

[tex]\large\boxed{5^2=25}[/tex]

Step-by-step explanation:

[tex]\text{Perfect square:}\ (a+b)^2=a^2+2ab+b^2\\\\x^2+10x\\\Downarrow\\x^2+2(x)(5)\\\Downarrow\\x^2+2(x)(5)+5^2=(x+5)^2[/tex]

Answer Link
501stDeathtrooper
501stDeathtrooper 501stDeathtrooper
  • 26-04-2019

Answer:

25

Step-by-step explanation:

In case anyone was confused the answer is 25. took the test.

Answer Link

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