Helpo please

x = - 1 is extraneous

Step-by-step explanation:

= x ( square both sides )

4x + 5 = x² ( subtract 4x + 5 from both sides )

0 = x² - 4x - 5 ← in standard form

0 = (x - 5)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

As a check

Substitute these values into the equation and if both sides are equal then they are solutions.

x = 5

left side = = = = 5

right side = x = 5

Then x = 5 is a solution of the equation

x = - 1

left side = = = = 1

right side = x = - 1

Then x = - 1 is an extraneous solution

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation: