Since there is an area expansion. all you have to do is add the original area and the expanded area. Thus,
9x2 + 6x + 9 + 8x -7
Combine like terms
9x2 + 14x + 2 <-- ANSWER
Hope I was able to help you. Thank you.
Cot²x/csc+1
=(csc²x-1)/(csc+1)
=((1/sin²x)-1)/((1/sinx)+1)
=((1-sin²x)/sin²x)/((1+sinx)/sinx)
=(1-sin²x)/(1+sinx)
=(1+sinx)(1-sinx)/sinx(1+sinx)
=(1-sinx)/sinx
<span>y = slope*x + y-intercept;
</span>We can rewrite our equation in a shorter form : y = mx + b;
y = x + 2 ; m1 = 2 and b1 = 2;
y = -x + 6; m2 = -1 and b2 = 6;
<span>Set the two equations for y equal to each other:
</span>x + 2 = -x + 6 ;
<span>Solve for x. This will be the x-coordinate for the point of intersection:
</span>2x = 4;
x = 2;
<span>Use this x-coordinate and plug it into either of the original equations for the lines and solve for y. This will be the y-coordinate of the point of intersection:
</span>y = 2 + 2 ;
y = 4;
<span>The point of intersection for these two lines is (2 , 4).</span>
Answer:
(7b+9)(7b-9)
Step-by-step explanation: