Question

Tolong dibantu ya abang dan kakak
a.(2x+5)(2x+5)
b.(2x+5)(2x-5)
c.6a³b²:3a²b
d.x³y:(x²y²:xy)
e.(24p²q+18pq²):3pq
f.(4x²+6x-2):2
g.2(p+q):p+q

Answer 1

A. (2x+5)(2x+5)
= 4x²+10x+10x+25
=4x²+20x+25

b.(2x+5)(2x-5)
=4x²-10x+10x+25
=4x²+25

c. 6a³b² : 3a²b = 2ab
d. x³y : (x²y² : xy)
= x³y : xy
= x²

e. (24p²q+18pq²) : 3pq
= 24p²q : 3pq + 18pq² : 3pq
= 8p+6q

f. (4x²+6x+2) :2 = 2x²+3x+1
g. 2(p+q) : p+q
= 2(p+q) : 1(p+q)
= 2 : 1
= 2

Answer 2

A. (2x+5)(2x+5)= 4x²+10x+10x+25
                       = 4x²+20x+25
b. (2x+5)(2x-5)= 4x²-10x+10x-25
                     = 4x²-25
c. 6a³b² : 3a²b= 2ab
d. x³y : (x²y² : xy)= x³y : xy
                         =x²
e. (24p²q + 18pq²) : 3pq= 4p²q²
f. (4x²+6x-2) : 2=2x²+3x-1
g. 2(p+q) : p+q= 2