3 years ago

If x = -3, calculate the value of: 2x2 + x

Mathematics

1 answer:

user100 [1]3 years ago

8 0

At x=-3:

2x^2+ x
= 2(-3)^2+ (-3)
= 2*9 -3
= 18 -3
= 15

The value of 2x^2+ x is 15 if x=-3~

You might be interested in

Anthony puchased a coffee mug on sale for 20% off.

andrew-mc [135]

Answer:

6 dollars

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A carpenter needs to cut four sections, each 3–feet 8–inches long, from a piece of molding. If the board is only sold by the foo

Volgvan

3 feet 8 inches converted to inches is 3x12+8=44inches

44inches times 4 pieces is 176 inches.

176 inches converted back to feet and inches is 176/12=14 feet 8 inches so he would need 15 feet of board

3 0

3 years ago

Can someone help me pls

NikAS [45]

Answer:

Step-by-step explanation:

what do you want me to do???

just tell me what to do

8 0

2 years ago

Where would parentheses go 9 x 7+ 8-5=66

Vsevolod [243]

Answer:

9 × 7 + (8 - 5) = 66

Step-by-step explanation:

9 × 7 + 8 - 5 = 66

Applying the order of operations (PEMDAS);

The parenthesis would go to 9 × 7 + (8 - 5) = 66

3 0

2 years ago

Read 2 more answers

How many solutions can be found for the system of linear equations represented on the graph? A) no solution Eliminate B) one sol

IRISSAK [1]

Answer:

Step-by-step explanation:

one solution

8 0

2 years ago

Read 2 more answers