<PRE><B>Question 6102</B>
1)
{{{4x^2+7x-2}}}
Find the two middle terms whose sum is 7x and whose product is -8.
{{{4x+8x-x-2}}}
Factor by using factoring by grouping.
{{{4x(x+2)-(x+2)}}}
Factor common term
{{{(x+2)(4x-1)}}}
2)
{{{16y^2=25}}}
Substract 25 from both sides
{{{16y^2-25=0}}}
This is the difference of a square
{{{(4y-5)^2=0}}}
Solve for y
4y-5=0, y=5/4
Hope it helps</PRE>