Question

factorise2x²-7x-15 factorise​

Answer 1

HEYA MATE HERE IS YOUR ANSWER ⤵️⤵️
.
.
${2x}^{2} - 7x - 15 = 0$
${2x}^{2} - 10x + 3x - 15 = 0$
$2x(x - 5) + 3(x - 5) = 0$
$(2x + 3)(x - 5) = 0$
THEREFORE, x = -3/2 , 5✔✔✔✔✔

Answer 2

$\huge{\mathfrak{Solution}}$

▶ 2x² - 7x - 15
( ax² - bx - c )

a × c = -30
2 × -15 = -30
3 × -10 = -30

a + c = b
3 + (-10) = -7

▶ 2x² + 3x - 10x - 15
▶ x( 2x + 3 ) - 5( 2x + 3 )
▶ (x - 5)(2x + 3)