Question

Find the product of (5t-3) and (3t +7) when t = 6

Answer 1

Answer:

675

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Step-by-step explanation:

Step 1: Define

(5t - 3) · (3t + 7)

t = 6

Step 2: Evaluate

1. Substitute in t:                    (5(6) - 3) · (3(6) + 7)
2. (Parenthesis) Multiply:       (30 - 3) · (18 + 7)
3. (Parenthesis) Subtract:      27 · (18 + 7)
4. (Parenthesis) Add:             27 · 25
5. Multiply:                              675

Answer 2

Answer:

(5t -3)(3t+7) (im multiplying them together, if that's not what the questions asking lmk. but anyway, put them next to eachother and then plug in 6 for t)

(5(6) -3)(3(6)+7) (multiply where possible)

(30 -3)(18+7) (use the distributive property/foil to multiply the two)

540 +210 -54 -21 (add the positive numbers and subtract the negative )

750 - 75 (subtract)

675 (the answer)

Step-by-step explanation:

I hope this helps :)