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Georgia [21]
3 years ago
9

Simplify (15+6)^2-(8-5)^2

Mathematics
1 answer:
Art [367]3 years ago
3 0
Use "PEMDAS" (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) to know what to do first.

(15 + 6)^{2} - (8 - 5)^{2}   Solve the insides of the parentheses
21^{2} - 3^{2}                   Solve the exponents (21 x 21) and (3 x 3)
441 - 9                             Subtract
432

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ratios, fractions, statistics, and percentage increase or decrease.

Step-by-step explanation:

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8 0
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Whats the answer? A, B, C, or D??
Marina86 [1]

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Step-by-step explanation:

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3 years ago
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3 years ago
​ What are the zeros of the function?​ f(x)=x2+17x+72
Semmy [17]
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-b±√b^2-4(a)(c)/2a 

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Now, We can plug it into our formula.

BE SURE TO PUT PARENTHESIS AROUND ALL TERMS!

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Now we can type it into a calculator! 

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