What is 2(x-7)^2+3(x-7)-5 ?

The solution to 2(x-7)^2+3(x-7)-5 is 2x^2-25x+72

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simplify 2(x-7)^2+3(x-7)-5

simplify

2 (x - 7)^{2} + 3 (x - 7) - 5

2 x^{2} - 25 x + 72

Solution steps

2 (x - 7)^{2} + 3 (x - 7) - 5

Expand

2 (x - 7)^{2} : 2 x^{2} - 28 x + 98

= 2 x^{2} - 28 x + 98 + 3 (x - 7) - 5

Expand

3 (x - 7) : 3 x - 21

= 2 x^{2} - 28 x + 98 + 3 x - 21 - 5

Group like terms

= 2 x^{2} - 28 x + 3 x + 98 - 21 - 5

Add similar elements:

- 28 x + 3 x = - 25 x

= 2 x^{2} - 25 x + 98 - 21 - 5

Subtract the numbers:

98 - 21 - 5 = 72

= 2 x^{2} - 25 x + 72

\frac{2}{7} \cdot \frac{7}{9}

12 x^{2} y - 32 x y + 8 y

(3 z)^{2}

\frac{4 ^{- 3}}{4 ^{5}}

lo g_{10} (1.8 \cdot 1 0^{- 5})