Question

Sederhanakan !
a. (xkuadrat + 6x+5) - (-2xkuadrat +3x-6)
b. (5p-4q)(p kuadrat + 12p-10)
c . [(3x-4y)+5] kuadrat

Answer 1

A. (x²+6x+5)-(-2x²+3x-6)
= x²+6x+5+2x²-3x+6
=3x²+3x+11

b. (5p-4q)(p²+12p-10)
=5p³+60p²-50p-4p²q-48pq+40q

c. [(3x-4y)+5]²
=[(3x-4y+5)]²
=(3x-4y+5)(3x-4y+5)
=9x²-12xy+15x-12xy+16y²-20y+15x-20y+25
=9x²+16y²+30x-40y-24xy+25