Question

No 4 yang d.e.f tolong besok dkmpl..pakai cara yg jelas ...maaksih

Answer 1

4 c. 2a^2 b^2 -4c) + (b +(-c) -a
= 2 (-3)^2 2^2 -4*-5 ) + (2+(5)+3
=2.9 * 4+20 + 10
= 102

Answer 2

4) c) (2a²b²-4c).(b+(-c)-a)
= (2.(-3)².2²-4.(-5)).(2+(-(-5)-(-3))
= ( 2.9.4+20).(2+5+3)
= (72+20).10
= 92.10
= 920


d) (3a²b+2ab-3a²c).(a²+c-b²)
= (3.(-3)².2 + 2.(-3).2 - 3.(-3)².(-5)) . ((-3)²+(-5)-2²)
= (3.9.2 + (-12) - 3.9.(-5)) . (9-5-4)
= (54-12+135).0
= 177.0
= 0


e) (2ab-3c²).(ab-c) = (2.(-3).2 - 3.(-5)²) . ((-3).2 - (-5))
= (-12-3.25).(-6+5)
= (-12-75).(-1)
= -87.(-1)
= 87