Answer:
D
Step-by-step explanation:
The treatment in the case given is the testing of the fertilizers. For portions labelled A : Old fertilizers, B : New fertilizers , C : No fertilizers.
Each and every soil is treated with 3 different fertilizers at each and every type of soil, the results are interpreted from harvest of soybeans
15a^2+3ab-1, I would explain my answer, however, I would get deleted for copying something else which is ridiculous.<span />
To simplify the expression, we distribute terms accordingly. It is done as follows:
<span>(3a – 4b)(a + b)
3a</span>² + 3ab -4ab -4b²
3a² - ab -4b²
Therefore, the correct answer is option A, <span>3a^2– ab – 4b^2.
Hope this answers the question. Have a nice day. Please feel free to ask more questions.</span>
Sub -2 for x
h(-2)=3(-2)+1
h(-2)=-6+1
h(-2)=-5
