Simplify: 5{"A"^2-"A"("A"-overline("A"-2))}

Simplify:

`5{"a"^2-"a"("a"-overline("a"-2))}`

Sum

`5{"a"^2-"a"("a"-overline("a"-2))}`

= 5 {a² − a (a − a + 2)}

= 5 {a² − a² + a² − 2a}

= 5a² − 5a²+ 5a² − 10a

= 5a² − 10a

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Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.

d ÷ x = ..................

Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.

xz + cd = ...................

Find the value of p + 2q + 3r, when p = 1, q = 5 and r = 2

If a = 3, b = 0, c = 2 and d = 1, find the value of abc − bcd + cda

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4x + 3 (2x − 5y)

Insert the bracket as indicated:

x − 2y = − (...................)

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Simplify:

3x – 8 (5x – 10)

Simplify:

3x – 6 {3x – 8 (5x – 10)}