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Popular >

(a+7)(a-7)>0

Solution

(a + 7) (a - 7) > 0

Solution

a < - 7 or a > 7

+1

Interval Notation

(- \infty, - 7) \cup (7, \infty)

Solution steps

(a + 7) (a - 7) > 0

Expand

(a + 7) (a - 7) : a^{2} - 49

a^{2} - 49 > 0

Move

49

to the right side

a^{2} > 49

For

u^{n} > a

, if

n

is even then

a < - 49 or a > 49

49 = 7

a < - 7 or a > 7

Popular Examples

3(x-1)-2(x-3)=7

3 (x - 1) - 2 (x - 3) = 7

6 x^{2} + 15 = - 9

simplify (((4x^2y^3)^0)/(-3x^{-1)y^2})^3 simplify

(\frac{( 4 x ^{2} y ^{3} ) ^{0}}{- 3 x ^{- 1} y ^{2}})^{3}

simplify 9/20+3/4 simplify

\frac{9}{20} + \frac{3}{4}

simplify (4.18-3.1)*0.5*0.3 simplify

(4.18 - 3.1) \cdot 0.5 \cdot 0.3

Frequently Asked Questions (FAQ)

What is (a+7)(a-7)>0 ?
The solution to (a+7)(a-7)>0 is a<-7\lor a>7