What is the factored form of this polynomial? x2 + 5x − 36

Mathematics

2 answers:

brilliants [131]3 years ago

7 0

Answer:

Step-by-step explanation:

hello :

B. (x − 4)(x + 9)

calculate : (x − 4)(x + 9)= x²+9x-4x-36 = x²+5x-36

eduard3 years ago

6 0

Answer:

B is correct

Step-by-step explanation:

We need two numbers that add up to +5, and when multiplied get -36. B is the only one that gives a product of -36 and a sum of +5 (-4*9 and -4+9 respectively)

Hope this helped!

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harina [27]

<h2>Steps:</h2><h3>A.</h3>

For this, plug 4 into the x variable (since 4 is in the x variable of g(x)) and solve as such:

$g(4)=\frac{1}{2}*4+5\\\\g(4)=2+5\\\\g(4)=7$