Question

Prove,
x²+6 x +9= 4 +(6x 2) +(9x2)
Also find value of x​

Answer 1

Answer:

$x {}^{2} + 6x + = 4 + (6 \times 2) + (9 \times 2)$

$x {}^{2} (x \times x) \: 6x + 94(6 \times 2) + (9 \times 2)$

$2x + 6x + 9 = 4(6 \times 2) + (9 \times 2)$

$8x + 9 = 4(6 \times 2) + (9 \times 2)$

$8x = 9 + 4(6 \times 2) + (9 \times 2)$

$8x = 13(6 \times 2) + (9 \times 2)$

$8x = 13(12) + (18)$

$8x = 13(30)$

$8x = 30 \times 13$

$8x = 390$

$x = 390 \div 8$

$x = 48.75$

$is \: your \: right \: answer$

$100\%sure$

Answer 2

Answer:

X sq +6x+9=4+12x+18x

x2 +9=14x

x2+14x+9

x2+(8+7)x+9

x2+8x+7x+9

x(x+4)+9(x+4)

x=4

x=9