How do you find the value of #2(6^2-9)#?

Answer 1

Julian Avila

54

When evaluating expressions with #color(blue)"mixed operations"# there is a particular order that must be followed.

Follow the order as set out in the acronym PEMDAS.

#rArr(6^2-9)=(36-9)=27larrcolor(red)"bracket with exponent"#

#rArr2(27)=2xx27=54larrcolor(red)" then multiplication"#

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email

Answer 2

Zoe Adams

To find the value of $2(6^2-9)$ , first calculate $6^2$ (which is $36$ ), then subtract 9 from that result (36 - 9 = 27), and finally, multiply the result by 2 (27 * 2 = 54). So, the value of $2(6^2-9)$ is 54.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.