Question

If P is equal to 2 Y squared minus 5 minus 2y
Q is equal to Y squared minus 3 Y + 6 and R is equal to is equal to Y squared minus 4 Y + 2
Then find P + 2 Q + 2rR

Answer 1

$\huge{\bold{\red{P= 2{y}^{2}-5-2y}}}$

$\huge{\bold{\green{ Q={y}^{2}-3y+6}}}$

$\huge{\bold{\orange{ R={y}^{2}-4y+2}}}$


So

P+2Q+R=2y^2-5-2y+(2y^2 -6y+12)+(2y^2-8y+4)

= 6y^2-16y+11



$\huge{\bold{\pink{P=6{y}^{2}-16y+11}}}$