Question

plz help me to solve this problems​

Answer 1

$\ \huge \mathfrak{ՏօƖʋƭíօղ♡}$

$15) \: prime \: factors \: of \: 42 \: is \: 2 \times 3 \times 7$

$16) \: square \: root \: of \: 6.25 \: is \: 2.5.$

$17)(i){x}^{2} +7x + 10 = (x + 2)(x + 5)$

$(ii) \: {x}^{2} - 5x - 14 = (x + 2)(x - 7)$

$(iii) \: {x}^{2} + 4x + 4 = (x + 2)(x + 2)$

$(iv) \: {x}^{2} - 4 = (x + 2)(x - 2)$

Hope it helps you ✌️

Answer 2

15) 2X3 X7

16) 2.5

I)(x+2)(x+5)

ii) (x+2)(X-7)

iii) (x+2)(x+2)

iV) (x+2)(X-2)