3 years ago

Solve the following equation using algebric formulas (x-y)(x+y)

Mathematics

1 answer:

photoshop1234 [79]3 years ago

4 0

The simplified expression of (x + y)(x - y) is x^2 - y^2

<h3>How to solve the expression?</h3>

The expression is given as:

(x + y)(x - y)

Expand the bracket

x(x - y) + y(x -y)

Further, expand

x^2 - xy + xy - y^2

Evaluate the like terms

x^2 - y^2

Hence, the simplified expression of (x + y)(x - y) is x^2 - y^2

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3 years ago

Use the distributive property to find the equivalent expression.<br><br> 6(2 + 5t) = ?+?t

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3 years ago

Two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. He

kolbaska11 [484]

9514 1404 393

Answer:

D. Henry's started farther, went faster

Step-by-step explanation:

Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...

y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value

Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.

Henry started farther from town and traveled faster.