Respuesta :

calculista

Answer:

[tex]B=40[/tex]

Step-by-step explanation:

we know that

[tex](a+b)^{2}=a^{2}+2ab+b^{2}[/tex]

In this problem we have

[tex](4a+5)^{2}=16a^{2}+Ba+25[/tex]

The second term of the trinomial is equal to

[tex]2(4a)(5)=40a[/tex]

therefore

[tex]B=40[/tex]

bubbapayneproduction

Answer:

B=40 i know this is late but i do hope it helps

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