solve each equation (use the method provided) 1.Square Roots method A.2x +2=10 B...

Questions

September 2022 1 2 Report

solve each equation (use the method provided) 1.Square Roots method A.2x +2=10 B.x²-4 = 60 2 Factor to solve Aux-2x-15=0 B. (2x+8) (x-5)=0

pa help po

Answers & Comments

gadorangel09

Answer:

____________________________

1. Square roots method

A. 2x² + 2 = 10

$2 {x}^{2} + 2 = 10 \\ 2 {x}^{2} = 10 - 2 \\ 2 {x}^{2} = 8 \\ {x}^{2} = 4 \\ \sqrt{ {x}^{2} } = \sqrt{4} \\ x = 2$

B. x² - 4 = 60

${x}^{2} - 4 = 60 \\ {x}^{2} = 60 + 4 \\ {x}^{2} = 64 \\ \sqrt{ {x}^{2} } = \sqrt{64} \\ x = 8$

2. Factor to solve

A. x² - 2x - 15 = 0

${x}^{2} - 2x - 15 = 0 \\ (x - 5)(x + 3) = 0 \\ (x - 5) = 0 \: \: \: \: \: (x + 3) = 0 \\ x = 5 \: \: \: \: \: \: \: \: \: \: x = - 3$

B. (2x + 8) (x- 5) = 0

$(2x + 8)(x - 5) = 0 \\ (2x + 8) = 0 \: \: \: \: \: \: \: \: \: \: (x - 5) = 0 \\ 2x = - 8 \: \: \: \: \: \: \: \: x = 5 \\ x = - 4 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

3. Complete the square

A. x² - 8x + 3 = 0

x² - 8x + 3 = 0

x² - 8x + (8/2)² = -3 + (8/2)²

(x-4)² = 13

√(x-4)² = √13

x = ( ± √13 ) +4

4. Quadratic formula

A. 6x² + 2x + 1 = 0

$6 {x}^{2} + 2x + 1 = 0 \\ a = 6 \: \: \: \: b = 2 \: \: \: \: c = 1 \\ x1 = \frac{ - (2)^{2} + \sqrt{ {2}^{2} - 4(6)(1) } }{2(6)} = \frac{ - 4 + \sqrt{ - 20} }{12 } \\ x2 = \frac{ - (2)^{2} - \sqrt{ {2}^{2} - 4(6)(1) } }{2(6)} = \frac{4 - \sqrt{ - 20} }{12}$

___________________________

PahingiSago6282 salamat po

Questions

Answers & Comments

____________________________

1. Square roots method

2. Factor to solve

3. Complete the square

4. Quadratic formula

___________________________

Add an Answer

pumili ngisang suliraning pangkapaligiran. gumawa Ng environmental issue map sa ...

pumili ngisang suliraning pangkapaligiran. gumawa Ng environmental issue map sa ...

Activity: Complete Me Direction: Complete the table by giving what is asked. One...

ACTIVITY: Find the geometric mean of the following geometric terms: 1. 125 and 5...

find the 7th term of the geometric sequence 1 7 49

pahelp po ako kahit ito lang po1c07147f5e6b8389f6cfaaacf8c42edd 53172

solve standard form a b c 2x x6 4x5 1 x 524 3x x21 x 5x 3x44

standard form a b 12x x 6 a

standard form a b c 2x x6 4x5 1 x 524 3x x21 5x 3x44 1 xpingi po sa

what are the different types of gates pahelp

Recommend Questions

Helpful Links

Helpful Social