Question

using identity X + a x + b is equal to X square + a + b x + A B solve 9.7 multiply 9.8​

Answer 1

Answer:

hey!!

Step-by-step explanation:

question:= using identity X + a x + b is equal to X square + a + b x + A B solve 9.7 multiply 9.8​

ans .  

we know that,

(x+a)(x+b)

x²+(a+b)x+ab

now how can we find 9.7×9.8??

• 9.7× 9.8

• => (9+0.7)(9+0.8)
• (9)²+(0.7+0.8)9+(0.7 × 0.8){using the formula above}
• => 95.06

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