The second one is the answer: f(4) = 22
Answer:
Step-by-step explanation:
x² - 144 = x² - 12²
= (x +12)(x - 12)
a² - b² = (a + b)(a-b)
Answer:
The answer is 16.
Step-by-step explanation:
First you need to substitute the letters with the number.
<h2>1 <u>-2ab </u> = -2(8)(-4)= 64 -2(8)=-16 -16(-4)=64</h2><h2> 8-4= 4 64/4= 16</h2>
It is (c+d)
you can basically use FOIL (first,outside,inside,last) to solve this.
you know the first term of the factor has to be C because of the c^2
the second then has to be D because you haven't seen D in the factor yet and it is in the equation.
then you know from the equation that the terms with D are not negative so D isn't negative so you have form the information above (c+d)
