add the following expression 8a²-6a-9 and 6a²+10a+5
Answers
Answered by
0
Step-by-step explanation:
−3−[(8a−6a2+9)+(−10a−8+8a2)]
=−3−[8a−6a2+9+−10a−8+8a2]
=−3−[(8a−10a)+(−6a2+8a2)+(9−8)]
=−3−[−2a+2a2+1]
=−3+2a−2a2−1
=+2a−2a2−4
=−2a2+2a−4
Answered by
0
Answer:
−3−[(8a−6a
2
+9)+(−10a−8+8a
2
)]
=−3−[8a−6a
2
+9+−10a−8+8a
2
]
=−3−[(8a−10a)+(−6a
2
+8a
2
)+(9−8)]
=−3−[−2a+2a
2
+1]
=−3+2a−2a
2
−1
=+2a−2a
2
−4
=−2a
2
+2a−4
Similar questions