subtract 2ab+7a²+8b² from 10b²+7ab+a²
explain this please
Answers
Answered by
8
Step-by-step explanation:
subtract 2ab+7a²+8b² from 10b²+7ab+a²
= 10b²+7ab+a²- (2ab+7a²+8b²) [Minus sign gets multiplied]
= 10b²+7ab+a² -2ab - 7a²- 8b² [Then like terms are taken side by side]
= a²- 7a² +7ab -2ab + 10b² - 8b² [At last like terms are subtracted]
= -6a²+ 5ab + 2b² (Ans)
Answered by
2
= (2ab + 7a² + 8b²) - (10b² + 7ab+ a²)
= 2ab + 7a² + 8b² - 10b² - 7ab - a²
= 2ab - 7ab + 7a² - a² + 8b² - 10b²
= -5ab + 6a² - 2b²
Similar questions